Response:
exports.up = (next) ->
  mongo ->
    robot = db.users.findOne name: 'talkai', isRobot: true
    teams = db.teams.find()
    teams.forEach (team) ->
      db.members.update
        user: robot._id
        team: team._id
      ,
        user: robot._id
        team: team._id
        isQuit: false
        role: 'member'
        createdAt: ISODate()
        updatedAt: ISODate()
      , upsert: true

      room = db.rooms.findOne team: team._id, isGeneral: true
      if room?._id
        db.members.update
          user: robot._id
          room: room._id
        ,
          user: robot._id
          room: room._id
          isQuit: false
          role: 'member'
          createdAt: ISODate()
          updatedAt: ISODate()
        , upsert: true
  next()

exports.down = (next) ->
  mongo ->
    robot = db.users.findOne name: 'talkai', isRobot: true
    db.members.remove user: robot._id
  next()


Prompt:
Convert this CoffeeScript to JavaScript.
```coffeescript
exports.up = (next) ->
  mongo ->
    robot = db.users.findOne name: 'talkai', isRobot: true
    teams = db.teams.find()
    teams.forEach (team) ->
      db.members.update
        user: robot._id
        team: team._id
      ,
        user: robot._id
        team: team._id
        isQuit: false
        role: 'member'
        createdAt: ISODate()
        updatedAt: ISODate()
      , upsert: true

      room = db.rooms.findOne team: team._id, isGeneral: true
      if room?._id
        db.members.update
          user: robot._id
          room: room._id
        ,
          user: robot._id
          room: room._id
          isQuit: false
          role: 'member'
          createdAt: ISODate()
          updatedAt: ISODate()
        , upsert: true
  next()

exports.down = (next) ->
  mongo ->
    robot = db.users.findOne name: 'talkai', isRobot: true
    db.members.remove user: robot._id
  next()
```

Response:
exports.up = function(next) {
  mongo(function() {
    var robot, teams;
    robot = db.users.findOne({
      name: 'talkai',
      isRobot: true
    });
    teams = db.teams.find();
    return teams.forEach(function(team) {
      var room;
      db.members.update({
        user: robot._id,
        team: team._id
      }, {
        user: robot._id,
        team: team._id,
        isQuit: false,
        role: 'member',
        createdAt: ISODate(),
        updatedAt: ISODate()
      }, {
        upsert: true
      });
      room = db.rooms.findOne({
        team: team._id,
        isGeneral: true
      });
      if (room != null ? room._id : void 0) {
        return db.members.update({
          user: robot._id,
          room: room._id
        }, {
          user: robot._id,
          room: room._id,
          isQuit: false,
          role: 'member',
          createdAt: ISODate(),
          updatedAt: ISODate()
        }, {
          upsert: true
        });
      }
    });
  });
  return next();
};

exports.down = function(next) {
  mongo(function() {
    var robot;
    robot = db.users.findOne({
      name: 'talkai',
      isRobot: true
    });
    return db.members.remove({
      user: robot._id
    });
  });
  return next();
};


Prompt:
Convert this JavaScript to CoffeeScript.
```javascript
exports.up = function(next) {
  mongo(function() {
    var robot, teams;
    robot = db.users.findOne({
      name: 'talkai',
      isRobot: true
    });
    teams = db.teams.find();
    return teams.forEach(function(team) {
      var room;
      db.members.update({
        user: robot._id,
        team: team._id
      }, {
        user: robot._id,
        team: team._id,
        isQuit: false,
        role: 'member',
        createdAt: ISODate(),
        updatedAt: ISODate()
      }, {
        upsert: true
      });
      room = db.rooms.findOne({
        team: team._id,
        isGeneral: true
      });
      if (room != null ? room._id : void 0) {
        return db.members.update({
          user: robot._id,
          room: room._id
        }, {
          user: robot._id,
          room: room._id,
          isQuit: false,
          role: 'member',
          createdAt: ISODate(),
          updatedAt: ISODate()
        }, {
          upsert: true
        });
      }
    });
  });
  return next();
};

exports.down = function(next) {
  mongo(function() {
    var robot;
    robot = db.users.findOne({
      name: 'talkai',
      isRobot: true
    });
    return db.members.remove({
      user: robot._id
    });
  });
  return next();
};
```

Response:
exports.up = (next) ->
  mongo ->
    robot = db.users.findOne name: 'talkai', isRobot: true
    teams = db.teams.find()
    teams.forEach (team) ->
      db.members.update
        user: robot._id
        team: team._id
      ,
        user: robot._id
        team: team._id
        isQuit: false
        role: 'member'
        createdAt: ISODate()
        updatedAt: ISODate()
      , upsert: true

      room = db.rooms.findOne team: team._id, isGeneral: true
      if room?._id
        db.members.update
          user: robot._id
          room: room._id
        ,
          user: robot._id
          room: room._id
          isQuit: false
          role: 'member'
          createdAt: ISODate()
          updatedAt: ISODate()
        , upsert: true
  next()

exports.down = (next) ->
  mongo ->
    robot = db.users.findOne name: 'talkai', isRobot: true
    db.members.remove user: robot._id
  next()


Prompt:
exports.up = (next) ->
  mongo ->
    robot = db.users.findOne name: 'talkai', isRobot: true
    teams = db.teams.find()
    teams.forEach (team) ->
      db.members.update
        user: robot._id
        team: team._id
      ,
        user: robot._id
        team: team._id
        isQuit: false
        role: 'member'
        createdAt: ISODate()
        updatedAt: ISODate()
      , upsert: true

      room = db.rooms.findOne team: team._id, isGeneral: true

Response:
if room?._id
        db.members.update
          user: robot._id
          room: room._id
        ,
          user: robot._id
          room: room._id
          isQuit: false
          role: 'member'
          createdAt: ISODate()
          updatedAt: ISODate()
        , upsert: true
  next()

exports.down = (next) ->
  mongo ->
    robot = db.users.findOne name: 'talkai', isRobot: true
    db.members.remove user: robot._id
  next()


Response:
describe '#findBy', ->
  it 'should single record when it exists', ->
    records =[
      { id: 1, name: 'Nikki' }
    ]

    stubResponse success: true, records: records, ->
      User.findBy(name: 'Nikki').then (user) ->
        expect(user).to.eql(id: 1, name: 'Nikki')

  it 'should undefined when it doesnt exist', ->
    stubResponse success: true, records: [], ->
      User.findBy(name: 'John').then (user) ->
        expect(user).to.eql(undefined)


Prompt:
Convert this CoffeeScript to JavaScript.
```coffeescript
describe '#findBy', ->
  it 'should single record when it exists', ->
    records =[
      { id: 1, name: 'Nikki' }
    ]

    stubResponse success: true, records: records, ->
      User.findBy(name: 'Nikki').then (user) ->
        expect(user).to.eql(id: 1, name: 'Nikki')

  it 'should undefined when it doesnt exist', ->
    stubResponse success: true, records: [], ->
      User.findBy(name: 'John').then (user) ->
        expect(user).to.eql(undefined)
```

Response:
describe('#findBy', function() {
  it('should single record when it exists', function() {
    var records;
    records = [
      {
        id: 1,
        name: 'Nikki'
      }
    ];
    return stubResponse({
      success: true,
      records: records
    }, function() {
      return User.findBy({
        name: 'Nikki'
      }).then(function(user) {
        return expect(user).to.eql({
          id: 1,
          name: 'Nikki'
        });
      });
    });
  });
  return it('should undefined when it doesnt exist', function() {
    return stubResponse({
      success: true,
      records: []
    }, function() {
      return User.findBy({
        name: 'John'
      }).then(function(user) {
        return expect(user).to.eql(void 0);
      });
    });
  });
});


Prompt:
Convert this JavaScript to CoffeeScript.
```javascript
describe('#findBy', function() {
  it('should single record when it exists', function() {
    var records;
    records = [
      {
        id: 1,
        name: 'Nikki'
      }
    ];
    return stubResponse({
      success: true,
      records: records
    }, function() {
      return User.findBy({
        name: 'Nikki'
      }).then(function(user) {
        return expect(user).to.eql({
          id: 1,
          name: 'Nikki'
        });
      });
    });
  });
  return it('should undefined when it doesnt exist', function() {
    return stubResponse({
      success: true,
      records: []
    }, function() {
      return User.findBy({
        name: 'John'
      }).then(function(user) {
        return expect(user).to.eql(void 0);
      });
    });
  });
});
```

Response:
describe '#findBy', ->
  it 'should single record when it exists', ->
    records =[
      { id: 1, name: 'Nikki' }
    ]

    stubResponse success: true, records: records, ->
      User.findBy(name: 'Nikki').then (user) ->
        expect(user).to.eql(id: 1, name: 'Nikki')

  it 'should undefined when it doesnt exist', ->
    stubResponse success: true, records: [], ->
      User.findBy(name: 'John').then (user) ->
        expect(user).to.eql(undefined)


Prompt:
describe '#findBy', ->
  it 'should single record when it exists', ->
    records =[
      { id: 1, name: 'Nikki' }
    ]

    stubResponse success: true, records: records, ->

Response:
User.findBy(name: 'Nikki').then (user) ->
        expect(user).to.eql(id: 1, name: 'Nikki')

  it 'should undefined when it doesnt exist', ->
    stubResponse success: true, records: [], ->
      User.findBy(name: 'John').then (user) ->
        expect(user).to.eql(undefined)


Response:
module.exports = class Journal
  constructor: (@filename) ->
    @filename = @filename or 'journal.log'
    @readstream = null
    @writefd = null

  start: (execute_operation) =>
    return QFS.exists(@filename).then (retval) =>
      if retval
        # console.log 'LOG EXISTS'
        Q.fcall =>
          @replay_log(execute_operation).then =>
            # console.log 'DONE REPLAYING'
            # This is dangerous
            @initialize_log("a")
      else
        # console.log 'LOG DOES NOT EXIST'
        Q.fcall =>
          @initialize_log().then =>
            return null

  shutdown: =>
    # logger.info 'SHUTTING DOWN JOURNAL'

    promise = Q.when(null)
    if @writefd != null
      promise = Q.nfcall(fs.fsync, @writefd).then =>
        Q.nfcall(fs.close, @writefd).then =>
          @writefd = null
    return promise

  initialize_log: (flags) =>
    if not flags
      flags = "w"
    # console.log 'INITIALIZING LOG'
    Q.nfcall(fs.open, @filename, flags).then (writefd) =>
      # console.log 'GOT FD', writefd
      @writefd = writefd

  replay_log: (execute_operation) =>
    # XXX: This code is basically guaranteed to have chunking problems right now.
    # Fix and then test rigorously!!!

    @readstream = fs.createReadStream(@filename, {flags: "r"})

    # console.log 'GOT READSTREAM'

    deferred = Q.defer()

    parts = []


Prompt:
Convert this CoffeeScript to JavaScript.
```coffeescript
module.exports = class Journal
  constructor: (@filename) ->
    @filename = @filename or 'journal.log'
    @readstream = null
    @writefd = null

  start: (execute_operation) =>
    return QFS.exists(@filename).then (retval) =>
      if retval
        # console.log 'LOG EXISTS'
        Q.fcall =>
          @replay_log(execute_operation).then =>
            # console.log 'DONE REPLAYING'
            # This is dangerous
            @initialize_log("a")
      else
        # console.log 'LOG DOES NOT EXIST'
        Q.fcall =>
          @initialize_log().then =>
            return null

  shutdown: =>
    # logger.info 'SHUTTING DOWN JOURNAL'

    promise = Q.when(null)
    if @writefd != null
      promise = Q.nfcall(fs.fsync, @writefd).then =>
        Q.nfcall(fs.close, @writefd).then =>
          @writefd = null
    return promise

  initialize_log: (flags) =>
    if not flags
      flags = "w"
    # console.log 'INITIALIZING LOG'
    Q.nfcall(fs.open, @filename, flags).then (writefd) =>
      # console.log 'GOT FD', writefd
      @writefd = writefd

  replay_log: (execute_operation) =>
    # XXX: This code is basically guaranteed to have chunking problems right now.
    # Fix and then test rigorously!!!

    @readstream = fs.createReadStream(@filename, {flags: "r"})

    # console.log 'GOT READSTREAM'

    deferred = Q.defer()

    parts = []
```

Response:
var Journal;

module.exports = Journal = class Journal {
  constructor(filename) {
    this.start = this.start.bind(this);
    this.shutdown = this.shutdown.bind(this);
    this.initialize_log = this.initialize_log.bind(this);
    this.replay_log = this.replay_log.bind(this);
    this.filename = filename;
    this.filename = this.filename || 'journal.log';
    this.readstream = null;
    this.writefd = null;
  }

  start(execute_operation) {
    return QFS.exists(this.filename).then((retval) => {
      if (retval) {
        // console.log 'LOG EXISTS'
        return Q.fcall(() => {
          return this.replay_log(execute_operation).then(() => {
            // console.log 'DONE REPLAYING'
            // This is dangerous
            return this.initialize_log("a");
          });
        });
      } else {
        // console.log 'LOG DOES NOT EXIST'
        return Q.fcall(() => {
          return this.initialize_log().then(() => {
            return null;
          });
        });
      }
    });
  }

  shutdown() {
    var promise;
    // logger.info 'SHUTTING DOWN JOURNAL'
    promise = Q.when(null);
    if (this.writefd !== null) {
      promise = Q.nfcall(fs.fsync, this.writefd).then(() => {
        return Q.nfcall(fs.close, this.writefd).then(() => {
          return this.writefd = null;
        });
      });
    }
    return promise;
  }

  initialize_log(flags) {
    if (!flags) {
      flags = "w";
    }
    // console.log 'INITIALIZING LOG'
    return Q.nfcall(fs.open, this.filename, flags).then((writefd) => {
      // console.log 'GOT FD', writefd
      return this.writefd = writefd;
    });
  }

  replay_log(execute_operation) {
    var deferred, parts;
    // XXX: This code is basically guaranteed to have chunking problems right now.
    // Fix and then test rigorously!!!
    this.readstream = fs.createReadStream(this.filename, {
      flags: "r"
    });
    // console.log 'GOT READSTREAM'
    deferred = Q.defer();
    return parts = [];
  }

};


Prompt:
Convert this JavaScript to CoffeeScript.
```javascript
var Journal;

module.exports = Journal = class Journal {
  constructor(filename) {
    this.start = this.start.bind(this);
    this.shutdown = this.shutdown.bind(this);
    this.initialize_log = this.initialize_log.bind(this);
    this.replay_log = this.replay_log.bind(this);
    this.filename = filename;
    this.filename = this.filename || 'journal.log';
    this.readstream = null;
    this.writefd = null;
  }

  start(execute_operation) {
    return QFS.exists(this.filename).then((retval) => {
      if (retval) {
        // console.log 'LOG EXISTS'
        return Q.fcall(() => {
          return this.replay_log(execute_operation).then(() => {
            // console.log 'DONE REPLAYING'
            // This is dangerous
            return this.initialize_log("a");
          });
        });
      } else {
        // console.log 'LOG DOES NOT EXIST'
        return Q.fcall(() => {
          return this.initialize_log().then(() => {
            return null;
          });
        });
      }
    });
  }

  shutdown() {
    var promise;
    // logger.info 'SHUTTING DOWN JOURNAL'
    promise = Q.when(null);
    if (this.writefd !== null) {
      promise = Q.nfcall(fs.fsync, this.writefd).then(() => {
        return Q.nfcall(fs.close, this.writefd).then(() => {
          return this.writefd = null;
        });
      });
    }
    return promise;
  }

  initialize_log(flags) {
    if (!flags) {
      flags = "w";
    }
    // console.log 'INITIALIZING LOG'
    return Q.nfcall(fs.open, this.filename, flags).then((writefd) => {
      // console.log 'GOT FD', writefd
      return this.writefd = writefd;
    });
  }

  replay_log(execute_operation) {
    var deferred, parts;
    // XXX: This code is basically guaranteed to have chunking problems right now.
    // Fix and then test rigorously!!!
    this.readstream = fs.createReadStream(this.filename, {
      flags: "r"
    });
    // console.log 'GOT READSTREAM'
    deferred = Q.defer();
    return parts = [];
  }

};
```

Response:
module.exports = class Journal
  constructor: (@filename) ->
    @filename = @filename or 'journal.log'
    @readstream = null
    @writefd = null

  start: (execute_operation) =>
    return QFS.exists(@filename).then (retval) =>
      if retval
        # console.log 'LOG EXISTS'
        Q.fcall =>
          @replay_log(execute_operation).then =>
            # console.log 'DONE REPLAYING'
            # This is dangerous
            @initialize_log("a")
      else
        # console.log 'LOG DOES NOT EXIST'
        Q.fcall =>
          @initialize_log().then =>
            return null

  shutdown: =>
    # logger.info 'SHUTTING DOWN JOURNAL'

    promise = Q.when(null)
    if @writefd != null
      promise = Q.nfcall(fs.fsync, @writefd).then =>
        Q.nfcall(fs.close, @writefd).then =>
          @writefd = null
    return promise

  initialize_log: (flags) =>
    if not flags
      flags = "w"
    # console.log 'INITIALIZING LOG'
    Q.nfcall(fs.open, @filename, flags).then (writefd) =>
      # console.log 'GOT FD', writefd
      @writefd = writefd

  replay_log: (execute_operation) =>
    # XXX: This code is basically guaranteed to have chunking problems right now.
    # Fix and then test rigorously!!!

    @readstream = fs.createReadStream(@filename, {flags: "r"})

    # console.log 'GOT READSTREAM'

    deferred = Q.defer()

    parts = []


Prompt:
module.exports = class Journal
  constructor: (@filename) ->
    @filename = @filename or 'journal.log'
    @readstream = null
    @writefd = null

  start: (execute_operation) =>
    return QFS.exists(@filename).then (retval) =>
      if retval
        # console.log 'LOG EXISTS'
        Q.fcall =>
          @replay_log(execute_operation).then =>
            # console.log 'DONE REPLAYING'
            # This is dangerous
            @initialize_log("a")
      else
        # console.log 'LOG DOES NOT EXIST'
        Q.fcall =>
          @initialize_log().then =>
            return null

  shutdown: =>
    # logger.info 'SHUTTING DOWN JOURNAL'

    promise = Q.when(null)

Response:
if @writefd != null
      promise = Q.nfcall(fs.fsync, @writefd).then =>
        Q.nfcall(fs.close, @writefd).then =>
          @writefd = null
    return promise

  initialize_log: (flags) =>
    if not flags
      flags = "w"
    # console.log 'INITIALIZING LOG'
    Q.nfcall(fs.open, @filename, flags).then (writefd) =>
      # console.log 'GOT FD', writefd
      @writefd = writefd

  replay_log: (execute_operation) =>
    # XXX: This code is basically guaranteed to have chunking problems right now.
    # Fix and then test rigorously!!!

    @readstream = fs.createReadStream(@filename, {flags: "r"})

    # console.log 'GOT READSTREAM'

    deferred = Q.defer()

    parts = []


Response:
# console.log 'REGISTERING HANDLERS'
    @readstream.on 'end', =>
      # console.log 'done reading'

    @readstream.on 'error', (error) =>
      # logger.error('Error on readstream', error)

    @readstream.on 'close', (close) =>
      # logger.info 'closed readstream'
      deferred.resolve()

    @readstream.on 'readable', =>
      # console.log 'READABLE EVENT'
      data = @readstream.read()
      # console.log 'READ', data, data.isEncoding

      lenbin = data.slice(0,4)
      if lenbin.length != 4
        throw Error("Didn't read 4 bytes for length prefix")

      lenprefix = jspack.Unpack('I', (c.charCodeAt(0) for c in lenbin.toString('binary').split('')), 0 )[0]

      # console.log 'lenprefix', lenprefix

      chunk = data.slice(4, 4 + lenprefix)

      if data.length > 4 + lenprefix
        rest = data.slice(4 + lenprefix)
      else
        rest = ''

      # console.log 'LENS', data.length, chunk.length, rest.length
      # console.log 'CHUNK', chunk.toString()

      # console.log 'rest', rest

      if chunk.length == lenprefix
        operation = JSON.parse(chunk.toString())
        # console.log 'operation', operation
        execute_operation(operation)
        @readstream.unshift(rest)
      else
        @readstream.unshift(data)
    # console.log 'registered handlers'

    return deferred.promise

  record: (message) =>
    # console.log 'RECORDING', message


Prompt:
# console.log 'REGISTERING HANDLERS'
    @readstream.on 'end', =>
      # console.log 'done reading'

    @readstream.on 'error', (error) =>
      # logger.error('Error on readstream', error)

    @readstream.on 'close', (close) =>
      # logger.info 'closed readstream'
      deferred.resolve()

    @readstream.on 'readable', =>
      # console.log 'READABLE EVENT'
      data = @readstream.read()
      # console.log 'READ', data, data.isEncoding

      lenbin = data.slice(0,4)
      if lenbin.length != 4
        throw Error("Didn't read 4 bytes for length prefix")

      lenprefix = jspack.Unpack('I', (c.charCodeAt(0) for c in lenbin.toString('binary').split('')), 0 )[0]

      # console.log 'lenprefix', lenprefix

      chunk = data.slice(4, 4 + lenprefix)

Response:
if data.length > 4 + lenprefix
        rest = data.slice(4 + lenprefix)
      else
        rest = ''

      # console.log 'LENS', data.length, chunk.length, rest.length
      # console.log 'CHUNK', chunk.toString()

      # console.log 'rest', rest

      if chunk.length == lenprefix
        operation = JSON.parse(chunk.toString())
        # console.log 'operation', operation
        execute_operation(operation)
        @readstream.unshift(rest)
      else
        @readstream.unshift(data)
    # console.log 'registered handlers'

    return deferred.promise

  record: (message) =>
    # console.log 'RECORDING', message


Response:
if @writefd == null
      # console.log 'NO WRITEFD AVAILABLE'
      return Q.when(null)

    # message = JSON.stringify(operation)

    l = message.length

    part = jspack.Pack('I', [l])

    buf = Buffer.concat [ Buffer(part), Buffer(message) ]

    writeq = Q.nfcall(fs.write, @writefd, buf, 0, buf.length, null)
    # console.log 'DONE WRITING', writeq, buf
    return writeq

  flush: =>
    Q.nfcall(fs.fsync, @writefd).then =>
      # console.log 'FLUSHED'


Prompt:
Convert this CoffeeScript to JavaScript.
```coffeescript
if @writefd == null
      # console.log 'NO WRITEFD AVAILABLE'
      return Q.when(null)

    # message = JSON.stringify(operation)

    l = message.length

    part = jspack.Pack('I', [l])

    buf = Buffer.concat [ Buffer(part), Buffer(message) ]

    writeq = Q.nfcall(fs.write, @writefd, buf, 0, buf.length, null)
    # console.log 'DONE WRITING', writeq, buf
    return writeq

  flush: =>
    Q.nfcall(fs.fsync, @writefd).then =>
      # console.log 'FLUSHED'
```

Response:
var buf, l, part, writeq;

if (this.writefd === null) {
  // console.log 'NO WRITEFD AVAILABLE'
  return Q.when(null);
}

// message = JSON.stringify(operation)
l = message.length;

part = jspack.Pack('I', [l]);

buf = Buffer.concat([Buffer(part), Buffer(message)]);

writeq = Q.nfcall(fs.write, this.writefd, buf, 0, buf.length, null);

// console.log 'DONE WRITING', writeq, buf
return writeq;

({
  flush: () => {
    return Q.nfcall(fs.fsync, this.writefd).then(() => {});
  }
});

// console.log 'FLUSHED'


Prompt:
Convert this JavaScript to CoffeeScript.
```javascript
var buf, l, part, writeq;

if (this.writefd === null) {
  // console.log 'NO WRITEFD AVAILABLE'
  return Q.when(null);
}

// message = JSON.stringify(operation)
l = message.length;

part = jspack.Pack('I', [l]);

buf = Buffer.concat([Buffer(part), Buffer(message)]);

writeq = Q.nfcall(fs.write, this.writefd, buf, 0, buf.length, null);

// console.log 'DONE WRITING', writeq, buf
return writeq;

({
  flush: () => {
    return Q.nfcall(fs.fsync, this.writefd).then(() => {});
  }
});

// console.log 'FLUSHED'
```

Response:
if @writefd == null
      # console.log 'NO WRITEFD AVAILABLE'
      return Q.when(null)

    # message = JSON.stringify(operation)

    l = message.length

    part = jspack.Pack('I', [l])

    buf = Buffer.concat [ Buffer(part), Buffer(message) ]

    writeq = Q.nfcall(fs.write, @writefd, buf, 0, buf.length, null)
    # console.log 'DONE WRITING', writeq, buf
    return writeq

  flush: =>
    Q.nfcall(fs.fsync, @writefd).then =>
      # console.log 'FLUSHED'


Prompt:
if @writefd == null
      # console.log 'NO WRITEFD AVAILABLE'
      return Q.when(null)

    # message = JSON.stringify(operation)

    l = message.length

    part = jspack.Pack('I', [l])

Response:
buf = Buffer.concat [ Buffer(part), Buffer(message) ]

    writeq = Q.nfcall(fs.write, @writefd, buf, 0, buf.length, null)
    # console.log 'DONE WRITING', writeq, buf
    return writeq

  flush: =>
    Q.nfcall(fs.fsync, @writefd).then =>
      # console.log 'FLUSHED'


Response:
module.exports = class Journal
  constructor: (@filename) ->
    @filename = @filename or 'journal.log'
    @readstream = null
    @writefd = null

  start: (execute_operation) =>
    return QFS.exists(@filename).then (retval) =>
      if retval
        console.log 'LOG EXISTS'
        Q.fcall =>
          @replay_log(execute_operation).then =>
            console.log 'DONE REPLAYING'
            # This is dangerous
            @initialize_log("a")
      else
        console.log 'LOG DOES NOT EXIST'
        Q.fcall =>
          @initialize_log().then =>
            return null

  shutdown: =>
    logger.info 'SHUTTING DOWN JOURNAL'

    promise = Q.when(null)
    if @writefd != null
      promise = Q.nfcall(fs.fsync, @writefd).then =>
        Q.nfcall(fs.close, @writefd).then =>
          @writefd = null
    return promise

  initialize_log: (flags) =>
    if not flags
      flags = "w"
    console.log 'INITIALIZING LOG'
    Q.nfcall(fs.open, @filename, flags).then (writefd) =>
      console.log 'GOT FD', writefd
      @writefd = writefd

  replay_log: (execute_operation) =>
    # XXX: This code is basically guaranteed to have chunking problems right now.
    # Fix and then test rigorously!!!

    @readstream = fs.createReadStream(@filename, {flags: "r"})

    console.log 'GOT READSTREAM'

    deferred = Q.defer()

    parts = []


Prompt:
Convert this CoffeeScript to JavaScript.
```coffeescript
module.exports = class Journal
  constructor: (@filename) ->
    @filename = @filename or 'journal.log'
    @readstream = null
    @writefd = null

  start: (execute_operation) =>
    return QFS.exists(@filename).then (retval) =>
      if retval
        console.log 'LOG EXISTS'
        Q.fcall =>
          @replay_log(execute_operation).then =>
            console.log 'DONE REPLAYING'
            # This is dangerous
            @initialize_log("a")
      else
        console.log 'LOG DOES NOT EXIST'
        Q.fcall =>
          @initialize_log().then =>
            return null

  shutdown: =>
    logger.info 'SHUTTING DOWN JOURNAL'

    promise = Q.when(null)
    if @writefd != null
      promise = Q.nfcall(fs.fsync, @writefd).then =>
        Q.nfcall(fs.close, @writefd).then =>
          @writefd = null
    return promise

  initialize_log: (flags) =>
    if not flags
      flags = "w"
    console.log 'INITIALIZING LOG'
    Q.nfcall(fs.open, @filename, flags).then (writefd) =>
      console.log 'GOT FD', writefd
      @writefd = writefd

  replay_log: (execute_operation) =>
    # XXX: This code is basically guaranteed to have chunking problems right now.
    # Fix and then test rigorously!!!

    @readstream = fs.createReadStream(@filename, {flags: "r"})

    console.log 'GOT READSTREAM'

    deferred = Q.defer()

    parts = []
```

Response:
var Journal;

module.exports = Journal = class Journal {
  constructor(filename) {
    this.start = this.start.bind(this);
    this.shutdown = this.shutdown.bind(this);
    this.initialize_log = this.initialize_log.bind(this);
    this.replay_log = this.replay_log.bind(this);
    this.filename = filename;
    this.filename = this.filename || 'journal.log';
    this.readstream = null;
    this.writefd = null;
  }

  start(execute_operation) {
    return QFS.exists(this.filename).then((retval) => {
      if (retval) {
        console.log('LOG EXISTS');
        return Q.fcall(() => {
          return this.replay_log(execute_operation).then(() => {
            console.log('DONE REPLAYING');
            // This is dangerous
            return this.initialize_log("a");
          });
        });
      } else {
        console.log('LOG DOES NOT EXIST');
        return Q.fcall(() => {
          return this.initialize_log().then(() => {
            return null;
          });
        });
      }
    });
  }

  shutdown() {
    var promise;
    logger.info('SHUTTING DOWN JOURNAL');
    promise = Q.when(null);
    if (this.writefd !== null) {
      promise = Q.nfcall(fs.fsync, this.writefd).then(() => {
        return Q.nfcall(fs.close, this.writefd).then(() => {
          return this.writefd = null;
        });
      });
    }
    return promise;
  }

  initialize_log(flags) {
    if (!flags) {
      flags = "w";
    }
    console.log('INITIALIZING LOG');
    return Q.nfcall(fs.open, this.filename, flags).then((writefd) => {
      console.log('GOT FD', writefd);
      return this.writefd = writefd;
    });
  }

  replay_log(execute_operation) {
    var deferred, parts;
    // XXX: This code is basically guaranteed to have chunking problems right now.
    // Fix and then test rigorously!!!
    this.readstream = fs.createReadStream(this.filename, {
      flags: "r"
    });
    console.log('GOT READSTREAM');
    deferred = Q.defer();
    return parts = [];
  }

};


Prompt:
Convert this JavaScript to CoffeeScript.
```javascript
var Journal;

module.exports = Journal = class Journal {
  constructor(filename) {
    this.start = this.start.bind(this);
    this.shutdown = this.shutdown.bind(this);
    this.initialize_log = this.initialize_log.bind(this);
    this.replay_log = this.replay_log.bind(this);
    this.filename = filename;
    this.filename = this.filename || 'journal.log';
    this.readstream = null;
    this.writefd = null;
  }

  start(execute_operation) {
    return QFS.exists(this.filename).then((retval) => {
      if (retval) {
        console.log('LOG EXISTS');
        return Q.fcall(() => {
          return this.replay_log(execute_operation).then(() => {
            console.log('DONE REPLAYING');
            // This is dangerous
            return this.initialize_log("a");
          });
        });
      } else {
        console.log('LOG DOES NOT EXIST');
        return Q.fcall(() => {
          return this.initialize_log().then(() => {
            return null;
          });
        });
      }
    });
  }

  shutdown() {
    var promise;
    logger.info('SHUTTING DOWN JOURNAL');
    promise = Q.when(null);
    if (this.writefd !== null) {
      promise = Q.nfcall(fs.fsync, this.writefd).then(() => {
        return Q.nfcall(fs.close, this.writefd).then(() => {
          return this.writefd = null;
        });
      });
    }
    return promise;
  }

  initialize_log(flags) {
    if (!flags) {
      flags = "w";
    }
    console.log('INITIALIZING LOG');
    return Q.nfcall(fs.open, this.filename, flags).then((writefd) => {
      console.log('GOT FD', writefd);
      return this.writefd = writefd;
    });
  }

  replay_log(execute_operation) {
    var deferred, parts;
    // XXX: This code is basically guaranteed to have chunking problems right now.
    // Fix and then test rigorously!!!
    this.readstream = fs.createReadStream(this.filename, {
      flags: "r"
    });
    console.log('GOT READSTREAM');
    deferred = Q.defer();
    return parts = [];
  }

};
```

Response:
module.exports = class Journal
  constructor: (@filename) ->
    @filename = @filename or 'journal.log'
    @readstream = null
    @writefd = null

  start: (execute_operation) =>
    return QFS.exists(@filename).then (retval) =>
      if retval
        console.log 'LOG EXISTS'
        Q.fcall =>
          @replay_log(execute_operation).then =>
            console.log 'DONE REPLAYING'
            # This is dangerous
            @initialize_log("a")
      else
        console.log 'LOG DOES NOT EXIST'
        Q.fcall =>
          @initialize_log().then =>
            return null

  shutdown: =>
    logger.info 'SHUTTING DOWN JOURNAL'

    promise = Q.when(null)
    if @writefd != null
      promise = Q.nfcall(fs.fsync, @writefd).then =>
        Q.nfcall(fs.close, @writefd).then =>
          @writefd = null
    return promise

  initialize_log: (flags) =>
    if not flags
      flags = "w"
    console.log 'INITIALIZING LOG'
    Q.nfcall(fs.open, @filename, flags).then (writefd) =>
      console.log 'GOT FD', writefd
      @writefd = writefd

  replay_log: (execute_operation) =>
    # XXX: This code is basically guaranteed to have chunking problems right now.
    # Fix and then test rigorously!!!

    @readstream = fs.createReadStream(@filename, {flags: "r"})

    console.log 'GOT READSTREAM'

    deferred = Q.defer()

    parts = []


Prompt:
module.exports = class Journal
  constructor: (@filename) ->
    @filename = @filename or 'journal.log'
    @readstream = null
    @writefd = null

  start: (execute_operation) =>
    return QFS.exists(@filename).then (retval) =>
      if retval
        console.log 'LOG EXISTS'
        Q.fcall =>
          @replay_log(execute_operation).then =>
            console.log 'DONE REPLAYING'
            # This is dangerous
            @initialize_log("a")
      else
        console.log 'LOG DOES NOT EXIST'
        Q.fcall =>
          @initialize_log().then =>
            return null

  shutdown: =>
    logger.info 'SHUTTING DOWN JOURNAL'

    promise = Q.when(null)

Response:
if @writefd != null
      promise = Q.nfcall(fs.fsync, @writefd).then =>
        Q.nfcall(fs.close, @writefd).then =>
          @writefd = null
    return promise

  initialize_log: (flags) =>
    if not flags
      flags = "w"
    console.log 'INITIALIZING LOG'
    Q.nfcall(fs.open, @filename, flags).then (writefd) =>
      console.log 'GOT FD', writefd
      @writefd = writefd

  replay_log: (execute_operation) =>
    # XXX: This code is basically guaranteed to have chunking problems right now.
    # Fix and then test rigorously!!!

    @readstream = fs.createReadStream(@filename, {flags: "r"})

    console.log 'GOT READSTREAM'

    deferred = Q.defer()

    parts = []


Response:
console.log 'REGISTERING HANDLERS'
    @readstream.on 'end', =>
      console.log 'done reading'

    @readstream.on 'error', (error) =>
      logger.error('Error on readstream', error)

    @readstream.on 'close', (close) =>
      logger.info 'closed readstream'
      deferred.resolve()

    @readstream.on 'readable', =>
      console.log 'READABLE EVENT'
      data = @readstream.read()
      console.log 'READ', data, data.isEncoding

      lenbin = data.slice(0,4)
      if lenbin.length != 4
        throw Error("Didn't read 4 bytes for length prefix")

      lenprefix = jspack.Unpack('I', (c.charCodeAt(0) for c in lenbin.toString('binary').split('')), 0 )[0]

      console.log 'lenprefix', lenprefix

      chunk = data.slice(4, 4 + lenprefix)

      if data.length > 4 + lenprefix
        rest = data.slice(4 + lenprefix)
      else
        rest = ''

      console.log 'LENS', data.length, chunk.length, rest.length
      console.log 'CHUNK', chunk.toString()

      console.log 'rest', rest

      if chunk.length == lenprefix
        operation = JSON.parse(chunk.toString())
        console.log 'operation', operation
        execute_operation(operation)
        @readstream.unshift(rest)
      else
        @readstream.unshift(data)
    console.log 'registered handlers'

    return deferred.promise

  record: (message) =>
    console.log 'RECORDING', message


Prompt:
console.log 'REGISTERING HANDLERS'
    @readstream.on 'end', =>
      console.log 'done reading'

    @readstream.on 'error', (error) =>
      logger.error('Error on readstream', error)

    @readstream.on 'close', (close) =>
      logger.info 'closed readstream'
      deferred.resolve()

    @readstream.on 'readable', =>
      console.log 'READABLE EVENT'
      data = @readstream.read()
      console.log 'READ', data, data.isEncoding

      lenbin = data.slice(0,4)
      if lenbin.length != 4
        throw Error("Didn't read 4 bytes for length prefix")

      lenprefix = jspack.Unpack('I', (c.charCodeAt(0) for c in lenbin.toString('binary').split('')), 0 )[0]

      console.log 'lenprefix', lenprefix

      chunk = data.slice(4, 4 + lenprefix)

Response:
if data.length > 4 + lenprefix
        rest = data.slice(4 + lenprefix)
      else
        rest = ''

      console.log 'LENS', data.length, chunk.length, rest.length
      console.log 'CHUNK', chunk.toString()

      console.log 'rest', rest

      if chunk.length == lenprefix
        operation = JSON.parse(chunk.toString())
        console.log 'operation', operation
        execute_operation(operation)
        @readstream.unshift(rest)
      else
        @readstream.unshift(data)
    console.log 'registered handlers'

    return deferred.promise

  record: (message) =>
    console.log 'RECORDING', message


Response:
if @writefd == null
      console.log 'NO WRITEFD AVAILABLE'
      return Q.when(null)

    # message = JSON.stringify(operation)

    l = message.length

    part = jspack.Pack('I', [l])

    buf = Buffer.concat [ Buffer(part), Buffer(message) ]

    writeq = Q.nfcall(fs.write, @writefd, buf, 0, buf.length, null)
    console.log 'DONE WRITING', writeq, buf
    return writeq

  flush: =>
    Q.nfcall(fs.fsync, @writefd).then =>
      console.log 'FLUSHED'


Prompt:
Convert this CoffeeScript to JavaScript.
```coffeescript
if @writefd == null
      console.log 'NO WRITEFD AVAILABLE'
      return Q.when(null)

    # message = JSON.stringify(operation)

    l = message.length

    part = jspack.Pack('I', [l])

    buf = Buffer.concat [ Buffer(part), Buffer(message) ]

    writeq = Q.nfcall(fs.write, @writefd, buf, 0, buf.length, null)
    console.log 'DONE WRITING', writeq, buf
    return writeq

  flush: =>
    Q.nfcall(fs.fsync, @writefd).then =>
      console.log 'FLUSHED'
```

Response:
var buf, l, part, writeq;

if (this.writefd === null) {
  console.log('NO WRITEFD AVAILABLE');
  return Q.when(null);
}

// message = JSON.stringify(operation)
l = message.length;

part = jspack.Pack('I', [l]);

buf = Buffer.concat([Buffer(part), Buffer(message)]);

writeq = Q.nfcall(fs.write, this.writefd, buf, 0, buf.length, null);

console.log('DONE WRITING', writeq, buf);

return writeq;

({
  flush: () => {
    return Q.nfcall(fs.fsync, this.writefd).then(() => {
      return console.log('FLUSHED');
    });
  }
});


Prompt:
Convert this JavaScript to CoffeeScript.
```javascript
var buf, l, part, writeq;

if (this.writefd === null) {
  console.log('NO WRITEFD AVAILABLE');
  return Q.when(null);
}

// message = JSON.stringify(operation)
l = message.length;

part = jspack.Pack('I', [l]);

buf = Buffer.concat([Buffer(part), Buffer(message)]);

writeq = Q.nfcall(fs.write, this.writefd, buf, 0, buf.length, null);

console.log('DONE WRITING', writeq, buf);

return writeq;

({
  flush: () => {
    return Q.nfcall(fs.fsync, this.writefd).then(() => {
      return console.log('FLUSHED');
    });
  }
});
```

Response:
if @writefd == null
      console.log 'NO WRITEFD AVAILABLE'
      return Q.when(null)

    # message = JSON.stringify(operation)

    l = message.length

    part = jspack.Pack('I', [l])

    buf = Buffer.concat [ Buffer(part), Buffer(message) ]

    writeq = Q.nfcall(fs.write, @writefd, buf, 0, buf.length, null)
    console.log 'DONE WRITING', writeq, buf
    return writeq

  flush: =>
    Q.nfcall(fs.fsync, @writefd).then =>
      console.log 'FLUSHED'


Prompt:
if @writefd == null
      console.log 'NO WRITEFD AVAILABLE'
      return Q.when(null)

    # message = JSON.stringify(operation)

    l = message.length

    part = jspack.Pack('I', [l])

Response:
buf = Buffer.concat [ Buffer(part), Buffer(message) ]

    writeq = Q.nfcall(fs.write, @writefd, buf, 0, buf.length, null)
    console.log 'DONE WRITING', writeq, buf
    return writeq

  flush: =>
    Q.nfcall(fs.fsync, @writefd).then =>
      console.log 'FLUSHED'


Response:
console.log 'REGISTERING HANDLERS'
    @readstream.on 'end', =>
      console.log 'done reading'
      @readstream.close()

    @readstream.on 'error', (error) =>
      logger.error('Error on readstream', error)

    @readstream.on 'close', (close) =>
      logger.info 'closed readstream'
      deferred.resolve()

    @readstream.on 'readable', =>
      console.log 'READABLE EVENT'
      data = @readstream.read()
      console.log 'READ', data, data.isEncoding

      lenbin = data.slice(0,4)
      if lenbin.length != 4
        throw Error("Didn't read 4 bytes for length prefix")

      lenprefix = jspack.Unpack('I', (c.charCodeAt(0) for c in lenbin.toString('binary').split('')), 0 )[0]

      console.log 'lenprefix', lenprefix

      chunk = data.slice(4, 4 + lenprefix)

      if data.length > 4 + lenprefix
        rest = data.slice(4 + lenprefix)
      else
        rest = ''

      console.log 'LENS', data.length, chunk.length, rest.length
      console.log 'CHUNK', chunk.toString()

      console.log 'rest', rest

      if chunk.length == lenprefix
        operation = JSON.parse(chunk.toString())
        console.log 'operation', operation
        execute_operation(operation)
        @readstream.unshift(rest)
      else
        @readstream.unshift(data)
    console.log 'registered handlers'

    return deferred.promise

  record: (message) =>


Prompt:
console.log 'REGISTERING HANDLERS'
    @readstream.on 'end', =>
      console.log 'done reading'
      @readstream.close()

    @readstream.on 'error', (error) =>
      logger.error('Error on readstream', error)

    @readstream.on 'close', (close) =>
      logger.info 'closed readstream'
      deferred.resolve()

    @readstream.on 'readable', =>
      console.log 'READABLE EVENT'
      data = @readstream.read()
      console.log 'READ', data, data.isEncoding

      lenbin = data.slice(0,4)
      if lenbin.length != 4
        throw Error("Didn't read 4 bytes for length prefix")

      lenprefix = jspack.Unpack('I', (c.charCodeAt(0) for c in lenbin.toString('binary').split('')), 0 )[0]

      console.log 'lenprefix', lenprefix

Response:
chunk = data.slice(4, 4 + lenprefix)

      if data.length > 4 + lenprefix
        rest = data.slice(4 + lenprefix)
      else
        rest = ''

      console.log 'LENS', data.length, chunk.length, rest.length
      console.log 'CHUNK', chunk.toString()

      console.log 'rest', rest

      if chunk.length == lenprefix
        operation = JSON.parse(chunk.toString())
        console.log 'operation', operation
        execute_operation(operation)
        @readstream.unshift(rest)
      else
        @readstream.unshift(data)
    console.log 'registered handlers'

    return deferred.promise

  record: (message) =>


Response:
console.log 'RECORDING', message
    if @writefd == null
      console.log 'NO WRITEFD AVAILABLE'
      return Q.when(null)

    # message = JSON.stringify(operation)

    l = message.length

    part = jspack.Pack('I', [l])

    buf = Buffer.concat [ Buffer(part), Buffer(message) ]

    writeq = Q.nfcall(fs.write, @writefd, buf, 0, buf.length, null)
    console.log 'DONE WRITING', writeq, buf
    return writeq

  flush: =>
    Q.nfcall(fs.fsync, @writefd).then =>
      console.log 'FLUSHED'


Prompt:
console.log 'RECORDING', message
    if @writefd == null
      console.log 'NO WRITEFD AVAILABLE'
      return Q.when(null)

    # message = JSON.stringify(operation)

    l = message.length

    part = jspack.Pack('I', [l])

Response:
buf = Buffer.concat [ Buffer(part), Buffer(message) ]

    writeq = Q.nfcall(fs.write, @writefd, buf, 0, buf.length, null)
    console.log 'DONE WRITING', writeq, buf
    return writeq

  flush: =>
    Q.nfcall(fs.fsync, @writefd).then =>
      console.log 'FLUSHED'


Response:
module.exports = class Journal
  constructor: (@filename) ->
    @filename = @filename or 'journal.log'
    @writefd = null

  start: (execute_operation) =>
    return QFS.exists(@filename).then (retval) =>
      if retval
        console.log 'LOG EXISTS'
        Q.fcall =>
          @replay_log(execute_operation).then =>
            console.log 'DONE REPLAYING'
            # This is dangerous
            @initialize_log("a")
      else
        console.log 'LOG DOES NOT EXIST'
        Q.fcall =>
          @initialize_log().then =>
            return null

  initialize_log: (flags) =>
    if not flags
      flags = "w"
    console.log 'INITIALIZING LOG'
    Q.nfcall(fs.open, @filename, flags).then (writefd) =>
      console.log 'GOT FD', writefd
      @writefd = writefd

  replay_log: (execute_operation) =>
    # XXX: This code is basically guaranteed to have chunking problems right now.
    # Fix and then test rigorously!!!

    @readstream = fs.createReadStream(@filename, {flags: "r"})

    console.log 'GOT READSTREAM'

    deferred = Q.defer()

    Q.fcall =>
      parts = []
      @readstream.on 'end', =>
        console.log 'done reading'
        @readstream.close()
        deferred.resolve()

      @readstream.on 'readable', =>
        data = @readstream.read()
        console.log 'READ', data, data.isEncoding
        lenprefix = jspack.Unpack('I', (c.charCodeAt(0) for c in data.slice(0,4).toString('binary').split('')), 0 )[0]


Prompt:
Convert this CoffeeScript to JavaScript.
```coffeescript
module.exports = class Journal
  constructor: (@filename) ->
    @filename = @filename or 'journal.log'
    @writefd = null

  start: (execute_operation) =>
    return QFS.exists(@filename).then (retval) =>
      if retval
        console.log 'LOG EXISTS'
        Q.fcall =>
          @replay_log(execute_operation).then =>
            console.log 'DONE REPLAYING'
            # This is dangerous
            @initialize_log("a")
      else
        console.log 'LOG DOES NOT EXIST'
        Q.fcall =>
          @initialize_log().then =>
            return null

  initialize_log: (flags) =>
    if not flags
      flags = "w"
    console.log 'INITIALIZING LOG'
    Q.nfcall(fs.open, @filename, flags).then (writefd) =>
      console.log 'GOT FD', writefd
      @writefd = writefd

  replay_log: (execute_operation) =>
    # XXX: This code is basically guaranteed to have chunking problems right now.
    # Fix and then test rigorously!!!

    @readstream = fs.createReadStream(@filename, {flags: "r"})

    console.log 'GOT READSTREAM'

    deferred = Q.defer()

    Q.fcall =>
      parts = []
      @readstream.on 'end', =>
        console.log 'done reading'
        @readstream.close()
        deferred.resolve()

      @readstream.on 'readable', =>
        data = @readstream.read()
        console.log 'READ', data, data.isEncoding
        lenprefix = jspack.Unpack('I', (c.charCodeAt(0) for c in data.slice(0,4).toString('binary').split('')), 0 )[0]
```

Response:
var Journal;

module.exports = Journal = class Journal {
  constructor(filename) {
    this.start = this.start.bind(this);
    this.initialize_log = this.initialize_log.bind(this);
    this.replay_log = this.replay_log.bind(this);
    this.filename = filename;
    this.filename = this.filename || 'journal.log';
    this.writefd = null;
  }

  start(execute_operation) {
    return QFS.exists(this.filename).then((retval) => {
      if (retval) {
        console.log('LOG EXISTS');
        return Q.fcall(() => {
          return this.replay_log(execute_operation).then(() => {
            console.log('DONE REPLAYING');
            // This is dangerous
            return this.initialize_log("a");
          });
        });
      } else {
        console.log('LOG DOES NOT EXIST');
        return Q.fcall(() => {
          return this.initialize_log().then(() => {
            return null;
          });
        });
      }
    });
  }

  initialize_log(flags) {
    if (!flags) {
      flags = "w";
    }
    console.log('INITIALIZING LOG');
    return Q.nfcall(fs.open, this.filename, flags).then((writefd) => {
      console.log('GOT FD', writefd);
      return this.writefd = writefd;
    });
  }

  replay_log(execute_operation) {
    var deferred;
    // XXX: This code is basically guaranteed to have chunking problems right now.
    // Fix and then test rigorously!!!
    this.readstream = fs.createReadStream(this.filename, {
      flags: "r"
    });
    console.log('GOT READSTREAM');
    deferred = Q.defer();
    return Q.fcall(() => {
      var parts;
      parts = [];
      this.readstream.on('end', () => {
        console.log('done reading');
        this.readstream.close();
        return deferred.resolve();
      });
      return this.readstream.on('readable', () => {
        var c, data, lenprefix;
        data = this.readstream.read();
        console.log('READ', data, data.isEncoding);
        return lenprefix = jspack.Unpack('I', (function() {
          var i, len, ref, results;
          ref = data.slice(0, 4).toString('binary').split('');
          results = [];
          for (i = 0, len = ref.length; i < len; i++) {
            c = ref[i];
            results.push(c.charCodeAt(0));
          }
          return results;
        })(), 0)[0];
      });
    });
  }

};


Prompt:
Convert this JavaScript to CoffeeScript.
```javascript
var Journal;

module.exports = Journal = class Journal {
  constructor(filename) {
    this.start = this.start.bind(this);
    this.initialize_log = this.initialize_log.bind(this);
    this.replay_log = this.replay_log.bind(this);
    this.filename = filename;
    this.filename = this.filename || 'journal.log';
    this.writefd = null;
  }

  start(execute_operation) {
    return QFS.exists(this.filename).then((retval) => {
      if (retval) {
        console.log('LOG EXISTS');
        return Q.fcall(() => {
          return this.replay_log(execute_operation).then(() => {
            console.log('DONE REPLAYING');
            // This is dangerous
            return this.initialize_log("a");
          });
        });
      } else {
        console.log('LOG DOES NOT EXIST');
        return Q.fcall(() => {
          return this.initialize_log().then(() => {
            return null;
          });
        });
      }
    });
  }

  initialize_log(flags) {
    if (!flags) {
      flags = "w";
    }
    console.log('INITIALIZING LOG');
    return Q.nfcall(fs.open, this.filename, flags).then((writefd) => {
      console.log('GOT FD', writefd);
      return this.writefd = writefd;
    });
  }

  replay_log(execute_operation) {
    var deferred;
    // XXX: This code is basically guaranteed to have chunking problems right now.
    // Fix and then test rigorously!!!
    this.readstream = fs.createReadStream(this.filename, {
      flags: "r"
    });
    console.log('GOT READSTREAM');
    deferred = Q.defer();
    return Q.fcall(() => {
      var parts;
      parts = [];
      this.readstream.on('end', () => {
        console.log('done reading');
        this.readstream.close();
        return deferred.resolve();
      });
      return this.readstream.on('readable', () => {
        var c, data, lenprefix;
        data = this.readstream.read();
        console.log('READ', data, data.isEncoding);
        return lenprefix = jspack.Unpack('I', (function() {
          var i, len, ref, results;
          ref = data.slice(0, 4).toString('binary').split('');
          results = [];
          for (i = 0, len = ref.length; i < len; i++) {
            c = ref[i];
            results.push(c.charCodeAt(0));
          }
          return results;
        })(), 0)[0];
      });
    });
  }

};
```

Response:
module.exports = class Journal
  constructor: (@filename) ->
    @filename = @filename or 'journal.log'
    @writefd = null

  start: (execute_operation) =>
    return QFS.exists(@filename).then (retval) =>
      if retval
        console.log 'LOG EXISTS'
        Q.fcall =>
          @replay_log(execute_operation).then =>
            console.log 'DONE REPLAYING'
            # This is dangerous
            @initialize_log("a")
      else
        console.log 'LOG DOES NOT EXIST'
        Q.fcall =>
          @initialize_log().then =>
            return null

  initialize_log: (flags) =>
    if not flags
      flags = "w"
    console.log 'INITIALIZING LOG'
    Q.nfcall(fs.open, @filename, flags).then (writefd) =>
      console.log 'GOT FD', writefd
      @writefd = writefd

  replay_log: (execute_operation) =>
    # XXX: This code is basically guaranteed to have chunking problems right now.
    # Fix and then test rigorously!!!

    @readstream = fs.createReadStream(@filename, {flags: "r"})

    console.log 'GOT READSTREAM'

    deferred = Q.defer()

    Q.fcall =>
      parts = []
      @readstream.on 'end', =>
        console.log 'done reading'
        @readstream.close()
        deferred.resolve()

      @readstream.on 'readable', =>
        data = @readstream.read()
        console.log 'READ', data, data.isEncoding
        lenprefix = jspack.Unpack('I', (c.charCodeAt(0) for c in data.slice(0,4).toString('binary').split('')), 0 )[0]


Prompt:
module.exports = class Journal
  constructor: (@filename) ->
    @filename = @filename or 'journal.log'
    @writefd = null

  start: (execute_operation) =>
    return QFS.exists(@filename).then (retval) =>
      if retval
        console.log 'LOG EXISTS'
        Q.fcall =>
          @replay_log(execute_operation).then =>
            console.log 'DONE REPLAYING'
            # This is dangerous
            @initialize_log("a")
      else
        console.log 'LOG DOES NOT EXIST'
        Q.fcall =>
          @initialize_log().then =>
            return null

  initialize_log: (flags) =>
    if not flags
      flags = "w"
    console.log 'INITIALIZING LOG'

Response:
Q.nfcall(fs.open, @filename, flags).then (writefd) =>
      console.log 'GOT FD', writefd
      @writefd = writefd

  replay_log: (execute_operation) =>
    # XXX: This code is basically guaranteed to have chunking problems right now.
    # Fix and then test rigorously!!!

    @readstream = fs.createReadStream(@filename, {flags: "r"})

    console.log 'GOT READSTREAM'

    deferred = Q.defer()

    Q.fcall =>
      parts = []
      @readstream.on 'end', =>
        console.log 'done reading'
        @readstream.close()
        deferred.resolve()

      @readstream.on 'readable', =>
        data = @readstream.read()
        console.log 'READ', data, data.isEncoding
        lenprefix = jspack.Unpack('I', (c.charCodeAt(0) for c in data.slice(0,4).toString('binary').split('')), 0 )[0]


Response:
console.log 'lenprefix', lenprefix

        chunk = data.slice(4, 4 + lenprefix)

        if data.length > 4 + lenprefix
          rest = data.slice(4 + lenprefix)
        else
          rest = ''

        console.log 'LENS', data.length, chunk.length, rest.length
        console.log 'CHUNK', chunk.toString()

        console.log 'rest', rest

        if chunk.length == lenprefix
          operation = JSON.parse(chunk.toString())
          console.log 'operation', operation
          execute_operation(operation)
          @readstream.unshift(rest)
        else
          @readstream.unshift(data)

    .fail =>
      console.log 'ERROR'
    .done()

    return deferred.promise

  record: (message) =>
    console.log 'RECORDING', message
    if @writefd == null
      console.log 'NO WRITEFD AVAILABLE'
      return Q.when(null)

    # message = JSON.stringify(operation)

    l = message.length

    part = jspack.Pack('I', [l])

    buf = Buffer.concat [ Buffer(part), Buffer(message) ]

    writeq = Q.nfcall(fs.write, @writefd, buf, 0, buf.length, null)
    console.log 'DONE WRITING', writeq, buf
    return writeq

  flush: =>
    Q.nfcall(fs.fsync, @writefd).then =>
      console.log 'FLUSHED'


Prompt:
console.log 'lenprefix', lenprefix

        chunk = data.slice(4, 4 + lenprefix)

        if data.length > 4 + lenprefix
          rest = data.slice(4 + lenprefix)
        else
          rest = ''

        console.log 'LENS', data.length, chunk.length, rest.length
        console.log 'CHUNK', chunk.toString()

        console.log 'rest', rest

        if chunk.length == lenprefix
          operation = JSON.parse(chunk.toString())
          console.log 'operation', operation
          execute_operation(operation)
          @readstream.unshift(rest)
        else
          @readstream.unshift(data)

    .fail =>
      console.log 'ERROR'

Response:
.done()

    return deferred.promise

  record: (message) =>
    console.log 'RECORDING', message
    if @writefd == null
      console.log 'NO WRITEFD AVAILABLE'
      return Q.when(null)

    # message = JSON.stringify(operation)

    l = message.length

    part = jspack.Pack('I', [l])

    buf = Buffer.concat [ Buffer(part), Buffer(message) ]

    writeq = Q.nfcall(fs.write, @writefd, buf, 0, buf.length, null)
    console.log 'DONE WRITING', writeq, buf
    return writeq

  flush: =>
    Q.nfcall(fs.fsync, @writefd).then =>
      console.log 'FLUSHED'


Response:
console.log 'lenprefix', lenprefix

        chunk = data.slice(4, 4 + lenprefix)

        if data.length > 4 + lenprefix
          rest = data.slice(4 + lenprefix)
        else
          rest = ''

        console.log 'LENS', data.length, chunk.length, rest.length
        console.log 'CHUNK', chunk.toString()

        console.log 'rest', rest

        if chunk.length == lenprefix
          operation = JSON.parse(chunk.toString())
          console.log 'operation', operation
          execute_operation(operation)
          @readstream.unshift(rest)
        else
          @readstream.unshift(data)

    .fail =>
      console.log 'ERROR'
    .done()

    return deferred.promise

  record: (operation) =>
    console.log 'RECORDING', operation
    if @writefd == null
      console.log 'NO WRITEFD AVAILABLE'
      return Q.when(null)

    # message = JSON.stringify(operation)

    l = message.length

    part = jspack.Pack('I', [l])

    buf = Buffer.concat [ Buffer(part), Buffer(operation) ]

    writeq = Q.nfcall(fs.write, @writefd, buf, 0, buf.length, null)
    console.log 'DONE WRITING', writeq, buf
    return writeq

  flush: =>
    Q.nfcall(fs.fsync, @writefd).then =>
      console.log 'FLUSHED'


Prompt:
console.log 'lenprefix', lenprefix

        chunk = data.slice(4, 4 + lenprefix)

        if data.length > 4 + lenprefix
          rest = data.slice(4 + lenprefix)
        else
          rest = ''

        console.log 'LENS', data.length, chunk.length, rest.length
        console.log 'CHUNK', chunk.toString()

        console.log 'rest', rest

        if chunk.length == lenprefix
          operation = JSON.parse(chunk.toString())
          console.log 'operation', operation
          execute_operation(operation)
          @readstream.unshift(rest)
        else
          @readstream.unshift(data)

    .fail =>
      console.log 'ERROR'

Response:
.done()

    return deferred.promise

  record: (operation) =>
    console.log 'RECORDING', operation
    if @writefd == null
      console.log 'NO WRITEFD AVAILABLE'
      return Q.when(null)

    # message = JSON.stringify(operation)

    l = message.length

    part = jspack.Pack('I', [l])

    buf = Buffer.concat [ Buffer(part), Buffer(operation) ]

    writeq = Q.nfcall(fs.write, @writefd, buf, 0, buf.length, null)
    console.log 'DONE WRITING', writeq, buf
    return writeq

  flush: =>
    Q.nfcall(fs.fsync, @writefd).then =>
      console.log 'FLUSHED'


Response:
console.log 'lenprefix', lenprefix

        chunk = data.slice(4, 4 + lenprefix)

        if data.length > 4 + lenprefix
          rest = data.slice(4 + lenprefix)
        else
          rest = ''

        console.log 'LENS', data.length, chunk.length, rest.length
        console.log 'CHUNK', chunk.toString()

        console.log 'rest', rest

        if chunk.length == lenprefix
          operation = JSON.parse(chunk.toString())
          console.log 'operation', operation
          execute_operation(operation)
          @readstream.unshift(rest)
        else
          @readstream.unshift(data)

    .fail =>
      console.log 'ERROR'
    .done()

    return deferred.promise

  record: (message) =>
    console.log 'RECORDING', operation
    if @writefd == null
      console.log 'NO WRITEFD AVAILABLE'
      return Q.when(null)

    # message = JSON.stringify(operation)

    l = message.length

    part = jspack.Pack('I', [l])

    buf = Buffer.concat [ Buffer(part), Buffer(message) ]

    writeq = Q.nfcall(fs.write, @writefd, buf, 0, buf.length, null)
    console.log 'DONE WRITING', writeq, buf
    return writeq

  flush: =>
    Q.nfcall(fs.fsync, @writefd).then =>
      console.log 'FLUSHED'


Prompt:
console.log 'lenprefix', lenprefix

        chunk = data.slice(4, 4 + lenprefix)

        if data.length > 4 + lenprefix
          rest = data.slice(4 + lenprefix)
        else
          rest = ''

        console.log 'LENS', data.length, chunk.length, rest.length
        console.log 'CHUNK', chunk.toString()

        console.log 'rest', rest

        if chunk.length == lenprefix
          operation = JSON.parse(chunk.toString())
          console.log 'operation', operation
          execute_operation(operation)
          @readstream.unshift(rest)
        else
          @readstream.unshift(data)

    .fail =>
      console.log 'ERROR'

Response:
.done()

    return deferred.promise

  record: (message) =>
    console.log 'RECORDING', operation
    if @writefd == null
      console.log 'NO WRITEFD AVAILABLE'
      return Q.when(null)

    # message = JSON.stringify(operation)

    l = message.length

    part = jspack.Pack('I', [l])

    buf = Buffer.concat [ Buffer(part), Buffer(message) ]

    writeq = Q.nfcall(fs.write, @writefd, buf, 0, buf.length, null)
    console.log 'DONE WRITING', writeq, buf
    return writeq

  flush: =>
    Q.nfcall(fs.fsync, @writefd).then =>
      console.log 'FLUSHED'


Response:
###
# Copyright (c) 2013-2018 the original author or authors.
#
# Licensed under the MIT License (the "License");
# you may not use this file except in compliance with the License.
# You may obtain a copy of the License at
#
#     http://www.opensource.org/licenses/mit-license.php
#
# Unless required by applicable law or agreed to in writing,
# software distributed under the License is distributed on an
# "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND,
# either express or implied. See the License for the specific
# language governing permissions and limitations under the License.
###

cyclotronServices.factory 'exportService', ($http, configService) ->

    {
        # List of all tags
        exportAsync: (dashboardName, format, params, callback) ->
            uri = configService.restServiceUrl + '/export/' + dashboardName + '/' + format
            if params? && _.keys(params).length > 0
                paramStrings = _.map _.pairs(params), (pair) ->
                    pair[0] + '=' + pair[1]
                uri += '?' + paramStrings.join('&')

            $http.post(uri).success (result) ->
                if _.isFunction(callback) then callback(result)

        getStatus: (statusUrl, callback) ->
            $http.get(statusUrl).success (result) ->
                if _.isFunction(callback) then callback(result)
    }


Prompt:
Convert this CoffeeScript to JavaScript.
```coffeescript
###
# Copyright (c) 2013-2018 the original author or authors.
#
# Licensed under the MIT License (the "License");
# you may not use this file except in compliance with the License.
# You may obtain a copy of the License at
#
#     http://www.opensource.org/licenses/mit-license.php
#
# Unless required by applicable law or agreed to in writing,
# software distributed under the License is distributed on an
# "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND,
# either express or implied. See the License for the specific
# language governing permissions and limitations under the License.
###

cyclotronServices.factory 'exportService', ($http, configService) ->

    {
        # List of all tags
        exportAsync: (dashboardName, format, params, callback) ->
            uri = configService.restServiceUrl + '/export/' + dashboardName + '/' + format
            if params? && _.keys(params).length > 0
                paramStrings = _.map _.pairs(params), (pair) ->
                    pair[0] + '=' + pair[1]
                uri += '?' + paramStrings.join('&')

            $http.post(uri).success (result) ->
                if _.isFunction(callback) then callback(result)

        getStatus: (statusUrl, callback) ->
            $http.get(statusUrl).success (result) ->
                if _.isFunction(callback) then callback(result)
    }
```

Response:
/*
 * Copyright (c) 2013-2018 the original author or authors.
 *
 * Licensed under the MIT License (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 *     http://www.opensource.org/licenses/mit-license.php
 *
 * Unless required by applicable law or agreed to in writing,
 * software distributed under the License is distributed on an
 * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND,
 * either express or implied. See the License for the specific
 * language governing permissions and limitations under the License.
 */
cyclotronServices.factory('exportService', function($http, configService) {
  return {
    // List of all tags
    exportAsync: function(dashboardName, format, params, callback) {
      var paramStrings, uri;
      uri = configService.restServiceUrl + '/export/' + dashboardName + '/' + format;
      if ((params != null) && _.keys(params).length > 0) {
        paramStrings = _.map(_.pairs(params), function(pair) {
          return pair[0] + '=' + pair[1];
        });
        uri += '?' + paramStrings.join('&');
      }
      return $http.post(uri).success(function(result) {
        if (_.isFunction(callback)) {
          return callback(result);
        }
      });
    },
    getStatus: function(statusUrl, callback) {
      return $http.get(statusUrl).success(function(result) {
        if (_.isFunction(callback)) {
          return callback(result);
        }
      });
    }
  };
});


Prompt:
Convert this JavaScript to CoffeeScript.
```javascript
/*
 * Copyright (c) 2013-2018 the original author or authors.
 *
 * Licensed under the MIT License (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 *     http://www.opensource.org/licenses/mit-license.php
 *
 * Unless required by applicable law or agreed to in writing,
 * software distributed under the License is distributed on an
 * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND,
 * either express or implied. See the License for the specific
 * language governing permissions and limitations under the License.
 */
cyclotronServices.factory('exportService', function($http, configService) {
  return {
    // List of all tags
    exportAsync: function(dashboardName, format, params, callback) {
      var paramStrings, uri;
      uri = configService.restServiceUrl + '/export/' + dashboardName + '/' + format;
      if ((params != null) && _.keys(params).length > 0) {
        paramStrings = _.map(_.pairs(params), function(pair) {
          return pair[0] + '=' + pair[1];
        });
        uri += '?' + paramStrings.join('&');
      }
      return $http.post(uri).success(function(result) {
        if (_.isFunction(callback)) {
          return callback(result);
        }
      });
    },
    getStatus: function(statusUrl, callback) {
      return $http.get(statusUrl).success(function(result) {
        if (_.isFunction(callback)) {
          return callback(result);
        }
      });
    }
  };
});
```

Response:
###
# Copyright (c) 2013-2018 the original author or authors.
#
# Licensed under the MIT License (the "License");
# you may not use this file except in compliance with the License.
# You may obtain a copy of the License at
#
#     http://www.opensource.org/licenses/mit-license.php
#
# Unless required by applicable law or agreed to in writing,
# software distributed under the License is distributed on an
# "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND,
# either express or implied. See the License for the specific
# language governing permissions and limitations under the License.
###

cyclotronServices.factory 'exportService', ($http, configService) ->

    {
        # List of all tags
        exportAsync: (dashboardName, format, params, callback) ->
            uri = configService.restServiceUrl + '/export/' + dashboardName + '/' + format
            if params? && _.keys(params).length > 0
                paramStrings = _.map _.pairs(params), (pair) ->
                    pair[0] + '=' + pair[1]
                uri += '?' + paramStrings.join('&')

            $http.post(uri).success (result) ->
                if _.isFunction(callback) then callback(result)

        getStatus: (statusUrl, callback) ->
            $http.get(statusUrl).success (result) ->
                if _.isFunction(callback) then callback(result)
    }


Prompt:
###
# Copyright (c) 2013-2018 the original author or authors.
#
# Licensed under the MIT License (the "License");
# you may not use this file except in compliance with the License.
# You may obtain a copy of the License at
#
#     http://www.opensource.org/licenses/mit-license.php
#
# Unless required by applicable law or agreed to in writing,
# software distributed under the License is distributed on an
# "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND,
# either express or implied. See the License for the specific
# language governing permissions and limitations under the License.
###

cyclotronServices.factory 'exportService', ($http, configService) ->

Response:
{
        # List of all tags
        exportAsync: (dashboardName, format, params, callback) ->
            uri = configService.restServiceUrl + '/export/' + dashboardName + '/' + format
            if params? && _.keys(params).length > 0
                paramStrings = _.map _.pairs(params), (pair) ->
                    pair[0] + '=' + pair[1]
                uri += '?' + paramStrings.join('&')

            $http.post(uri).success (result) ->
                if _.isFunction(callback) then callback(result)

        getStatus: (statusUrl, callback) ->
            $http.get(statusUrl).success (result) ->
                if _.isFunction(callback) then callback(result)
    }


Response:
###
# Copyright (c) 2013-2015 the original author or authors.
#
# Licensed under the MIT License (the "License");
# you may not use this file except in compliance with the License.
# You may obtain a copy of the License at
#
#     http://www.opensource.org/licenses/mit-license.php
#
# Unless required by applicable law or agreed to in writing,
# software distributed under the License is distributed on an
# "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND,
# either express or implied. See the License for the specific
# language governing permissions and limitations under the License.
###

cyclotronServices.factory 'exportService', ($http, configService) ->

    {
        # List of all tags
        exportAsync: (dashboardName, format, params, callback) ->
            uri = configService.restServiceUrl + '/export/' + dashboardName + '/' + format
            if params? && _.keys(params).length > 0
                paramStrings = _.map _.pairs(params), (pair) ->
                    pair[0] + '=' + pair[1]
                uri += '?' + paramStrings.join('&')

            $http.post(uri).success (result) ->
                if _.isFunction(callback) then callback(result)

        getStatus: (statusUrl, callback) ->
            $http.get(statusUrl).success (result) ->
                if _.isFunction(callback) then callback(result)
    }


Prompt:
Convert this CoffeeScript to JavaScript.
```coffeescript
###
# Copyright (c) 2013-2015 the original author or authors.
#
# Licensed under the MIT License (the "License");
# you may not use this file except in compliance with the License.
# You may obtain a copy of the License at
#
#     http://www.opensource.org/licenses/mit-license.php
#
# Unless required by applicable law or agreed to in writing,
# software distributed under the License is distributed on an
# "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND,
# either express or implied. See the License for the specific
# language governing permissions and limitations under the License.
###

cyclotronServices.factory 'exportService', ($http, configService) ->

    {
        # List of all tags
        exportAsync: (dashboardName, format, params, callback) ->
            uri = configService.restServiceUrl + '/export/' + dashboardName + '/' + format
            if params? && _.keys(params).length > 0
                paramStrings = _.map _.pairs(params), (pair) ->
                    pair[0] + '=' + pair[1]
                uri += '?' + paramStrings.join('&')

            $http.post(uri).success (result) ->
                if _.isFunction(callback) then callback(result)

        getStatus: (statusUrl, callback) ->
            $http.get(statusUrl).success (result) ->
                if _.isFunction(callback) then callback(result)
    }
```

Response:
/*
 * Copyright (c) 2013-2015 the original author or authors.
 *
 * Licensed under the MIT License (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 *     http://www.opensource.org/licenses/mit-license.php
 *
 * Unless required by applicable law or agreed to in writing,
 * software distributed under the License is distributed on an
 * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND,
 * either express or implied. See the License for the specific
 * language governing permissions and limitations under the License.
 */
cyclotronServices.factory('exportService', function($http, configService) {
  return {
    // List of all tags
    exportAsync: function(dashboardName, format, params, callback) {
      var paramStrings, uri;
      uri = configService.restServiceUrl + '/export/' + dashboardName + '/' + format;
      if ((params != null) && _.keys(params).length > 0) {
        paramStrings = _.map(_.pairs(params), function(pair) {
          return pair[0] + '=' + pair[1];
        });
        uri += '?' + paramStrings.join('&');
      }
      return $http.post(uri).success(function(result) {
        if (_.isFunction(callback)) {
          return callback(result);
        }
      });
    },
    getStatus: function(statusUrl, callback) {
      return $http.get(statusUrl).success(function(result) {
        if (_.isFunction(callback)) {
          return callback(result);
        }
      });
    }
  };
});


Prompt:
Convert this JavaScript to CoffeeScript.
```javascript
/*
 * Copyright (c) 2013-2015 the original author or authors.
 *
 * Licensed under the MIT License (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 *     http://www.opensource.org/licenses/mit-license.php
 *
 * Unless required by applicable law or agreed to in writing,
 * software distributed under the License is distributed on an
 * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND,
 * either express or implied. See the License for the specific
 * language governing permissions and limitations under the License.
 */
cyclotronServices.factory('exportService', function($http, configService) {
  return {
    // List of all tags
    exportAsync: function(dashboardName, format, params, callback) {
      var paramStrings, uri;
      uri = configService.restServiceUrl + '/export/' + dashboardName + '/' + format;
      if ((params != null) && _.keys(params).length > 0) {
        paramStrings = _.map(_.pairs(params), function(pair) {
          return pair[0] + '=' + pair[1];
        });
        uri += '?' + paramStrings.join('&');
      }
      return $http.post(uri).success(function(result) {
        if (_.isFunction(callback)) {
          return callback(result);
        }
      });
    },
    getStatus: function(statusUrl, callback) {
      return $http.get(statusUrl).success(function(result) {
        if (_.isFunction(callback)) {
          return callback(result);
        }
      });
    }
  };
});
```

Response:
###
# Copyright (c) 2013-2015 the original author or authors.
#
# Licensed under the MIT License (the "License");
# you may not use this file except in compliance with the License.
# You may obtain a copy of the License at
#
#     http://www.opensource.org/licenses/mit-license.php
#
# Unless required by applicable law or agreed to in writing,
# software distributed under the License is distributed on an
# "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND,
# either express or implied. See the License for the specific
# language governing permissions and limitations under the License.
###

cyclotronServices.factory 'exportService', ($http, configService) ->

    {
        # List of all tags
        exportAsync: (dashboardName, format, params, callback) ->
            uri = configService.restServiceUrl + '/export/' + dashboardName + '/' + format
            if params? && _.keys(params).length > 0
                paramStrings = _.map _.pairs(params), (pair) ->
                    pair[0] + '=' + pair[1]
                uri += '?' + paramStrings.join('&')

            $http.post(uri).success (result) ->
                if _.isFunction(callback) then callback(result)

        getStatus: (statusUrl, callback) ->
            $http.get(statusUrl).success (result) ->
                if _.isFunction(callback) then callback(result)
    }


Prompt:
###
# Copyright (c) 2013-2015 the original author or authors.
#
# Licensed under the MIT License (the "License");
# you may not use this file except in compliance with the License.
# You may obtain a copy of the License at
#
#     http://www.opensource.org/licenses/mit-license.php
#
# Unless required by applicable law or agreed to in writing,
# software distributed under the License is distributed on an
# "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND,
# either express or implied. See the License for the specific
# language governing permissions and limitations under the License.
###

cyclotronServices.factory 'exportService', ($http, configService) ->

Response:
{
        # List of all tags
        exportAsync: (dashboardName, format, params, callback) ->
            uri = configService.restServiceUrl + '/export/' + dashboardName + '/' + format
            if params? && _.keys(params).length > 0
                paramStrings = _.map _.pairs(params), (pair) ->
                    pair[0] + '=' + pair[1]
                uri += '?' + paramStrings.join('&')

            $http.post(uri).success (result) ->
                if _.isFunction(callback) then callback(result)

        getStatus: (statusUrl, callback) ->
            $http.get(statusUrl).success (result) ->
                if _.isFunction(callback) then callback(result)
    }


Response:
React = require 'react'
recorder = require 'actions-recorder'
uploadUtil  = require '../util/upload'

if typeof window isnt 'undefined'
  FileAPI = require 'fileapi'

query = require '../query'

lang = require '../locales/lang'
config = require '../config'
handlers = require '../handlers'

userActions = require '../actions/user'

div = React.createFactory 'div'
i = React.createFactory 'i'

T = React.PropTypes

module.exports = React.createClass
  displayName: 'profile-avatar'

  propTypes:
    avatarUrl: T.string.isRequired

  getInitialState: ->
    avatarUrl: @props.avatarUrl

  onUploaderCreate: ({file}) ->
    image = FileAPI.Image file
    image.preview 200, 200
    image.get (err, imageEL) =>
      if err
        console.error err
      else
        @setState avatarUrl: imageEL.toDataURL()

  onUploaderComplete: ({fileData}) ->
    _userId = query.userId(recorder.getState())
    userActions.userUpdate _userId, avatarUrl: fileData.thumbnailUrl
    @setState avatarUrl: fileData.thumbnailUrl

  onFileClick: (event) ->
    uploadUtil.handleClick
      accept: ".jpg,.jpeg,.bmp,.png"
      onCreate: @onUploaderCreate
      onSuccess: @onUploaderComplete
      onError: handlers.fileError


Prompt:
Convert this CoffeeScript to JavaScript.
```coffeescript
React = require 'react'
recorder = require 'actions-recorder'
uploadUtil  = require '../util/upload'

if typeof window isnt 'undefined'
  FileAPI = require 'fileapi'

query = require '../query'

lang = require '../locales/lang'
config = require '../config'
handlers = require '../handlers'

userActions = require '../actions/user'

div = React.createFactory 'div'
i = React.createFactory 'i'

T = React.PropTypes

module.exports = React.createClass
  displayName: 'profile-avatar'

  propTypes:
    avatarUrl: T.string.isRequired

  getInitialState: ->
    avatarUrl: @props.avatarUrl

  onUploaderCreate: ({file}) ->
    image = FileAPI.Image file
    image.preview 200, 200
    image.get (err, imageEL) =>
      if err
        console.error err
      else
        @setState avatarUrl: imageEL.toDataURL()

  onUploaderComplete: ({fileData}) ->
    _userId = query.userId(recorder.getState())
    userActions.userUpdate _userId, avatarUrl: fileData.thumbnailUrl
    @setState avatarUrl: fileData.thumbnailUrl

  onFileClick: (event) ->
    uploadUtil.handleClick
      accept: ".jpg,.jpeg,.bmp,.png"
      onCreate: @onUploaderCreate
      onSuccess: @onUploaderComplete
      onError: handlers.fileError
```

Response:
var FileAPI, React, T, config, div, handlers, i, lang, query, recorder, uploadUtil, userActions;

React = require('react');

recorder = require('actions-recorder');

uploadUtil = require('../util/upload');

if (typeof window !== 'undefined') {
  FileAPI = require('fileapi');
}

query = require('../query');

lang = require('../locales/lang');

config = require('../config');

handlers = require('../handlers');

userActions = require('../actions/user');

div = React.createFactory('div');

i = React.createFactory('i');

T = React.PropTypes;

module.exports = React.createClass({
  displayName: 'profile-avatar',
  propTypes: {
    avatarUrl: T.string.isRequired
  },
  getInitialState: function() {
    return {
      avatarUrl: this.props.avatarUrl
    };
  },
  onUploaderCreate: function({file}) {
    var image;
    image = FileAPI.Image(file);
    image.preview(200, 200);
    return image.get((err, imageEL) => {
      if (err) {
        return console.error(err);
      } else {
        return this.setState({
          avatarUrl: imageEL.toDataURL()
        });
      }
    });
  },
  onUploaderComplete: function({fileData}) {
    var _userId;
    _userId = query.userId(recorder.getState());
    userActions.userUpdate(_userId, {
      avatarUrl: fileData.thumbnailUrl
    });
    return this.setState({
      avatarUrl: fileData.thumbnailUrl
    });
  },
  onFileClick: function(event) {
    return uploadUtil.handleClick({
      accept: ".jpg,.jpeg,.bmp,.png",
      onCreate: this.onUploaderCreate,
      onSuccess: this.onUploaderComplete,
      onError: handlers.fileError
    });
  }
});


Prompt:
Convert this JavaScript to CoffeeScript.
```javascript
var FileAPI, React, T, config, div, handlers, i, lang, query, recorder, uploadUtil, userActions;

React = require('react');

recorder = require('actions-recorder');

uploadUtil = require('../util/upload');

if (typeof window !== 'undefined') {
  FileAPI = require('fileapi');
}

query = require('../query');

lang = require('../locales/lang');

config = require('../config');

handlers = require('../handlers');

userActions = require('../actions/user');

div = React.createFactory('div');

i = React.createFactory('i');

T = React.PropTypes;

module.exports = React.createClass({
  displayName: 'profile-avatar',
  propTypes: {
    avatarUrl: T.string.isRequired
  },
  getInitialState: function() {
    return {
      avatarUrl: this.props.avatarUrl
    };
  },
  onUploaderCreate: function({file}) {
    var image;
    image = FileAPI.Image(file);
    image.preview(200, 200);
    return image.get((err, imageEL) => {
      if (err) {
        return console.error(err);
      } else {
        return this.setState({
          avatarUrl: imageEL.toDataURL()
        });
      }
    });
  },
  onUploaderComplete: function({fileData}) {
    var _userId;
    _userId = query.userId(recorder.getState());
    userActions.userUpdate(_userId, {
      avatarUrl: fileData.thumbnailUrl
    });
    return this.setState({
      avatarUrl: fileData.thumbnailUrl
    });
  },
  onFileClick: function(event) {
    return uploadUtil.handleClick({
      accept: ".jpg,.jpeg,.bmp,.png",
      onCreate: this.onUploaderCreate,
      onSuccess: this.onUploaderComplete,
      onError: handlers.fileError
    });
  }
});
```

Response:
React = require 'react'
recorder = require 'actions-recorder'
uploadUtil  = require '../util/upload'

if typeof window isnt 'undefined'
  FileAPI = require 'fileapi'

query = require '../query'

lang = require '../locales/lang'
config = require '../config'
handlers = require '../handlers'

userActions = require '../actions/user'

div = React.createFactory 'div'
i = React.createFactory 'i'

T = React.PropTypes

module.exports = React.createClass
  displayName: 'profile-avatar'

  propTypes:
    avatarUrl: T.string.isRequired

  getInitialState: ->
    avatarUrl: @props.avatarUrl

  onUploaderCreate: ({file}) ->
    image = FileAPI.Image file
    image.preview 200, 200
    image.get (err, imageEL) =>
      if err
        console.error err
      else
        @setState avatarUrl: imageEL.toDataURL()

  onUploaderComplete: ({fileData}) ->
    _userId = query.userId(recorder.getState())
    userActions.userUpdate _userId, avatarUrl: fileData.thumbnailUrl
    @setState avatarUrl: fileData.thumbnailUrl

  onFileClick: (event) ->
    uploadUtil.handleClick
      accept: ".jpg,.jpeg,.bmp,.png"
      onCreate: @onUploaderCreate
      onSuccess: @onUploaderComplete
      onError: handlers.fileError


Prompt:
React = require 'react'
recorder = require 'actions-recorder'
uploadUtil  = require '../util/upload'

if typeof window isnt 'undefined'
  FileAPI = require 'fileapi'

query = require '../query'

lang = require '../locales/lang'
config = require '../config'
handlers = require '../handlers'

userActions = require '../actions/user'

div = React.createFactory 'div'
i = React.createFactory 'i'

T = React.PropTypes

module.exports = React.createClass
  displayName: 'profile-avatar'

  propTypes:

Response:
avatarUrl: T.string.isRequired

  getInitialState: ->
    avatarUrl: @props.avatarUrl

  onUploaderCreate: ({file}) ->
    image = FileAPI.Image file
    image.preview 200, 200
    image.get (err, imageEL) =>
      if err
        console.error err
      else
        @setState avatarUrl: imageEL.toDataURL()

  onUploaderComplete: ({fileData}) ->
    _userId = query.userId(recorder.getState())
    userActions.userUpdate _userId, avatarUrl: fileData.thumbnailUrl
    @setState avatarUrl: fileData.thumbnailUrl

  onFileClick: (event) ->
    uploadUtil.handleClick
      accept: ".jpg,.jpeg,.bmp,.png"
      onCreate: @onUploaderCreate
      onSuccess: @onUploaderComplete
      onError: handlers.fileError


Response:
render: ->
    avatarStyle =
      if @props.avatarUrl?.length
        backgroundImage: "url(#{ @state.avatarUrl })"
      else undefined

    div className: 'profile-avatar',
      div className: 'trigger', ref: 'trigger', style: avatarStyle, onClick: @onFileClick,
        i className: 'ti ti-camera'


Prompt:
Convert this CoffeeScript to JavaScript.
```coffeescript
render: ->
    avatarStyle =
      if @props.avatarUrl?.length
        backgroundImage: "url(#{ @state.avatarUrl })"
      else undefined

    div className: 'profile-avatar',
      div className: 'trigger', ref: 'trigger', style: avatarStyle, onClick: @onFileClick,
        i className: 'ti ti-camera'
```

Response:
({
  render: function() {
    var avatarStyle, ref;
    avatarStyle = ((ref = this.props.avatarUrl) != null ? ref.length : void 0) ? {
      backgroundImage: `url(${this.state.avatarUrl})`
    } : void 0;
    return div({
      className: 'profile-avatar'
    }, div({
      className: 'trigger',
      ref: 'trigger',
      style: avatarStyle,
      onClick: this.onFileClick
    }, i({
      className: 'ti ti-camera'
    })));
  }
});


Prompt:
Convert this JavaScript to CoffeeScript.
```javascript
({
  render: function() {
    var avatarStyle, ref;
    avatarStyle = ((ref = this.props.avatarUrl) != null ? ref.length : void 0) ? {
      backgroundImage: `url(${this.state.avatarUrl})`
    } : void 0;
    return div({
      className: 'profile-avatar'
    }, div({
      className: 'trigger',
      ref: 'trigger',
      style: avatarStyle,
      onClick: this.onFileClick
    }, i({
      className: 'ti ti-camera'
    })));
  }
});
```

Response:
render: ->
    avatarStyle =
      if @props.avatarUrl?.length
        backgroundImage: "url(#{ @state.avatarUrl })"
      else undefined

    div className: 'profile-avatar',
      div className: 'trigger', ref: 'trigger', style: avatarStyle, onClick: @onFileClick,
        i className: 'ti ti-camera'


Prompt:
render: ->
    avatarStyle =
      if @props.avatarUrl?.length
        backgroundImage: "url(#{ @state.avatarUrl })"

Response:
else undefined

    div className: 'profile-avatar',
      div className: 'trigger', ref: 'trigger', style: avatarStyle, onClick: @onFileClick,
        i className: 'ti ti-camera'


Response:
require '../lib/app'
request = require('request')

root_uri = 'http://localhost:8000'

describe 'APP Routes', ->
  it 'GET /', ->
    request uri: "#{root_uri}/", (req, resp) ->
      expect(resp.statusCode).toEqual(200)
      asyncSpecDone()
    asyncSpecWait()


Prompt:
Convert this CoffeeScript to JavaScript.
```coffeescript
require '../lib/app'
request = require('request')

root_uri = 'http://localhost:8000'

describe 'APP Routes', ->
  it 'GET /', ->
    request uri: "#{root_uri}/", (req, resp) ->
      expect(resp.statusCode).toEqual(200)
      asyncSpecDone()
    asyncSpecWait()
```

Response:
var request, root_uri;

require('../lib/app');

request = require('request');

root_uri = 'http://localhost:8000';

describe('APP Routes', function() {
  return it('GET /', function() {
    request({
      uri: `${root_uri}/`
    }, function(req, resp) {
      expect(resp.statusCode).toEqual(200);
      return asyncSpecDone();
    });
    return asyncSpecWait();
  });
});


Prompt:
Convert this JavaScript to CoffeeScript.
```javascript
var request, root_uri;

require('../lib/app');

request = require('request');

root_uri = 'http://localhost:8000';

describe('APP Routes', function() {
  return it('GET /', function() {
    request({
      uri: `${root_uri}/`
    }, function(req, resp) {
      expect(resp.statusCode).toEqual(200);
      return asyncSpecDone();
    });
    return asyncSpecWait();
  });
});
```

Response:
require '../lib/app'
request = require('request')

root_uri = 'http://localhost:8000'

describe 'APP Routes', ->
  it 'GET /', ->
    request uri: "#{root_uri}/", (req, resp) ->
      expect(resp.statusCode).toEqual(200)
      asyncSpecDone()
    asyncSpecWait()


Prompt:
require '../lib/app'
request = require('request')

root_uri = 'http://localhost:8000'

Response:
describe 'APP Routes', ->
  it 'GET /', ->
    request uri: "#{root_uri}/", (req, resp) ->
      expect(resp.statusCode).toEqual(200)
      asyncSpecDone()
    asyncSpecWait()


Response:
Derivation = require './Derivation'

# Represents a type referenced from element or attribute nodes.
module.exports = class XMLTypeInfo

  # Initializes a new instance of `XMLTypeInfo`
  #
  constructor: (@typeName, @typeNamespace) ->

  # DOM level 3 functions to be implemented later
  isDerivedFrom: (typeNamespaceArg, typeNameArg, derivationMethod) ->
    throw new Error "This DOM method is not implemented."


Prompt:
Convert this CoffeeScript to JavaScript.
```coffeescript
Derivation = require './Derivation'

# Represents a type referenced from element or attribute nodes.
module.exports = class XMLTypeInfo

  # Initializes a new instance of `XMLTypeInfo`
  #
  constructor: (@typeName, @typeNamespace) ->

  # DOM level 3 functions to be implemented later
  isDerivedFrom: (typeNamespaceArg, typeNameArg, derivationMethod) ->
    throw new Error "This DOM method is not implemented."
```

Response:
var Derivation, XMLTypeInfo;

Derivation = require('./Derivation');

// Represents a type referenced from element or attribute nodes.
module.exports = XMLTypeInfo = class XMLTypeInfo {
  // Initializes a new instance of `XMLTypeInfo`

  constructor(typeName, typeNamespace) {
    this.typeName = typeName;
    this.typeNamespace = typeNamespace;
  }

  // DOM level 3 functions to be implemented later
  isDerivedFrom(typeNamespaceArg, typeNameArg, derivationMethod) {
    throw new Error("This DOM method is not implemented.");
  }

};


Prompt:
Convert this JavaScript to CoffeeScript.
```javascript
var Derivation, XMLTypeInfo;

Derivation = require('./Derivation');

// Represents a type referenced from element or attribute nodes.
module.exports = XMLTypeInfo = class XMLTypeInfo {
  // Initializes a new instance of `XMLTypeInfo`

  constructor(typeName, typeNamespace) {
    this.typeName = typeName;
    this.typeNamespace = typeNamespace;
  }

  // DOM level 3 functions to be implemented later
  isDerivedFrom(typeNamespaceArg, typeNameArg, derivationMethod) {
    throw new Error("This DOM method is not implemented.");
  }

};
```

Response:
Derivation = require './Derivation'

# Represents a type referenced from element or attribute nodes.
module.exports = class XMLTypeInfo

  # Initializes a new instance of `XMLTypeInfo`
  #
  constructor: (@typeName, @typeNamespace) ->

  # DOM level 3 functions to be implemented later
  isDerivedFrom: (typeNamespaceArg, typeNameArg, derivationMethod) ->
    throw new Error "This DOM method is not implemented."


Prompt:
Derivation = require './Derivation'

# Represents a type referenced from element or attribute nodes.
module.exports = class XMLTypeInfo

  # Initializes a new instance of `XMLTypeInfo`

Response:
#
  constructor: (@typeName, @typeNamespace) ->

  # DOM level 3 functions to be implemented later
  isDerivedFrom: (typeNamespaceArg, typeNameArg, derivationMethod) ->
    throw new Error "This DOM method is not implemented."


Response:
fs = require('fs')

module.exports = ->
  process.env["LINEMAN_MAIN"] = findTheRightLineman()
  process.env["LINEMAN_ENV"] ||= "development"

findTheRightLineman = ->
  return "lineman" if fs.existsSync("#{process.cwd()}/node_modules/lineman")
  "#{__dirname}/../../lineman.js"


Prompt:
Convert this CoffeeScript to JavaScript.
```coffeescript
fs = require('fs')

module.exports = ->
  process.env["LINEMAN_MAIN"] = findTheRightLineman()
  process.env["LINEMAN_ENV"] ||= "development"

findTheRightLineman = ->
  return "lineman" if fs.existsSync("#{process.cwd()}/node_modules/lineman")
  "#{__dirname}/../../lineman.js"
```

Response:
var findTheRightLineman, fs;

fs = require('fs');

module.exports = function() {
  var base;
  process.env["LINEMAN_MAIN"] = findTheRightLineman();
  return (base = process.env)["LINEMAN_ENV"] || (base["LINEMAN_ENV"] = "development");
};

findTheRightLineman = function() {
  if (fs.existsSync(`${process.cwd()}/node_modules/lineman`)) {
    return "lineman";
  }
  return `${__dirname}/../../lineman.js`;
};


Prompt:
Convert this JavaScript to CoffeeScript.
```javascript
var findTheRightLineman, fs;

fs = require('fs');

module.exports = function() {
  var base;
  process.env["LINEMAN_MAIN"] = findTheRightLineman();
  return (base = process.env)["LINEMAN_ENV"] || (base["LINEMAN_ENV"] = "development");
};

findTheRightLineman = function() {
  if (fs.existsSync(`${process.cwd()}/node_modules/lineman`)) {
    return "lineman";
  }
  return `${__dirname}/../../lineman.js`;
};
```

Response:
fs = require('fs')

module.exports = ->
  process.env["LINEMAN_MAIN"] = findTheRightLineman()
  process.env["LINEMAN_ENV"] ||= "development"

findTheRightLineman = ->
  return "lineman" if fs.existsSync("#{process.cwd()}/node_modules/lineman")
  "#{__dirname}/../../lineman.js"


Prompt:
fs = require('fs')

module.exports = ->
  process.env["LINEMAN_MAIN"] = findTheRightLineman()

Response:
process.env["LINEMAN_ENV"] ||= "development"

findTheRightLineman = ->
  return "lineman" if fs.existsSync("#{process.cwd()}/node_modules/lineman")
  "#{__dirname}/../../lineman.js"


Response:
module.exports = React.createClass
  displayName: 'topic-name'
  mixins: [mixinSubscribe, PureRenderMixin]

  propTypes:
    topic:          T.instanceOf(Immutable.Map)
    onClick:        T.func
    colorizePlace:  T.string
    active:         T.bool
    hover:          T.bool
    showPurpose:    T.bool
    showUnread:     T.bool
    showGuest:      T.bool
    showMute:       T.bool
    showIcon:       T.bool
    showQuit:       T.bool

  getDefaultProps: ->
    onClick:        ->
    colorizePlace:  'background'
    active:         false
    hover:          false
    showPurpose:    false
    showUnread:     false
    showGuest:      false
    showMute:       false
    showIcon:       true
    showQuit:       false

  getInitialState: ->
    isMute: @getMute()

  componentDidMount: ->
    @subscribe recorder, => @setState isMute: @getMute()

  getMute: ->
    prefs = query.topicPrefsBy(recorder.getState(), @props.topic.get('_teamId'), @props.topic.get('_id'))
    isMute = prefs?.get('isMute') or false

  onClick: (event) ->
    # event.stopPropagation()
    @props.onClick @props.topic.get('_id')

  renderIcon: ->
    return unless @props.showIcon

    isGeneral = @props.topic.get('isGeneral')
    isPrivate = @props.topic.get('isPrivate')

    iconClass =