5 ms·

There's also a nice writeup of some of the more user-visible changes available here: https://gist.github.com/aseemk/8637896 https://gist.github.com/aseemk/86378

• jashkenas 13y ago
  (couldn't edit parent, so) Top 3 things tl;dr Paren-free chaining (think jQuery or d3): bar = svg.append 'rect' .attr 'fill', 'papayawhip' .attr 'width', width .attr 'height', 0 .attr 'y', height .attr 'data-hover', data.slug Ellipsis for soaking up matching parameters, even if you don't want to name a variable: [first, ..., last] = arrayOfStuff lastArgumentFn = (..., last) -> last ... and generally improved source maps.
  • xixixao 13y ago
    And together with source maps significantly improved error reporting. I think that might be important for some people who struggled with CS's syntax.
  • kaonashi 13y ago
    Nice… I had been using '__', but it seems like this will allow you to use it multiple times in a parameter list.
    • couchand 13y ago
      It's even cooler than throwaway names [0]. You can index from the back: arr = [1, 2, 3] [..., two, three] = arr or look for node-style callbacks... myFun = (..., cb) -> cb() But you can't use it multiple times. That would allow for ambiguous syntax: # disallowed [..., whatAmI, ...] = [1, 2, 3, 4] [0] https://gist.github.com/aseemk/8637896#expansion-in-array-destructuring https://gist.github.com/aseemk/8637896#expansion-in-array-de...
  • latchkey 13y ago
    ...it also seems to compile a bit faster. for my project... 1.6.3 real 0m2.287s 1.7.0 real 0m1.655s
• elwell 13y ago
  Oh goodie! My critical bugfix is now in the CoffeeScript stable: https://github.com/jashkenas/coffee-script/pull/3193 https://github.com/jashkenas/coffee-script/pull/3193