CoffeeScript Online IDE & Code Editor for Technical Interviews

Running CoffeeScript 2.6 under Node.js v16 - IntelliSense is not available

CoffeeScript in CoderPad just runs on top of the JavaScript environment, the only difference being that we do not run CoffeeScript with the --harmony flag.

We also have an array of interesting npm packages available for your use:

• underscore and lodash for many useful functional helpers. Fun fact: I managed to get _.sample added to underscore. You’re welcome.
• chai, sinon, sinon-chai, and mocha testing libraries.

Here’s a quick example of how to use sinon and chai:

  chai = require('chai')
  sinon = require('sinon')
  sinonChai = require('sinon-chai')

  hello = (name, cb) ->
    cb 'hello ' + name
    return

  chai.should()
  chai.use sinonChai
  cb = sinon.spy()
  hello 'world', cb
  cb.should.have.been.calledWith 'this test should fail'
Code language: CoffeeScript (coffeescript)

as well as mocha:

  Mocha = require('mocha')
  assert = require('assert')
  mocha = new Mocha

  # Bit of a hack, sorry!
  mocha.suite.emit 'pre-require', this, 'solution', mocha

  describe 'Test suite', ->
    it 'should work', ->
      assert true
  mocha.run()
Code language: CoffeeScript (coffeescript)

• async, request, and isomorphic-fetch for making async HTTP a little more convenient.
• q and bluebird are promise libraries to help make managing async in general easier.
• jsdom is a library for mimicking an HTML DOM within our JS environment. Useful if you want to test how candidates can manipulate elements without using our full HTML/CSS/JS environment.

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