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I wonder if they are using CoffeeScript anywhere at Facebook? http://facebook.github.io/jest/docs/tutorial-coffeescript.html#content http://facebook.github.io/

• vjeux 12y ago
  We're not using CoffeeScript inside of Facebook. But we are using many ES6 features that make JS look a lot like CoffeeScript such as classes, arrow functions, rest arguments, destructuring assignment ... I figured that CoffeeScript would be a good example to show that Jest supports languages that transpile to JS :)
  • skeeterbug 12y ago
    Curious - What are you using to transpile your ES6? Traceur?
    • jeffmo 12y ago
      Internally we use jstransform (github.com/facebook/jstransform) because it allows us to plug in individual transforms more easily. It's also what React uses for it's jsx transformations. jstransform also ships with a few es6 features out of the box (classes, arrow functions, etc -- and the number is growing!), but Traceur definitely has more.
• deleted 12y ago
  [deleted]
• jamesgpearce 12y ago
  Actually our recent shortcuts-for-framer project happens to use CoffeeScript, but this is very much an outlier. https://github.com/facebook/shortcuts-for-framer https://github.com/facebook/shortcuts-for-framer