5 ms·

I know there's much bigger things in this release to be excited about, but I'm so happy they're allowing trailing commas in function args/params.

• koolba 9y ago
  Curious why? I get the usefulness for arrays and object declarations. Particular to have cleaner diffs. But why for function calls?
  • t1amat 9y ago
    Prettifying long function signatures and calls. You can spread them across multiple lines with the same trailing comma syntax you might use with a multiline array or object literal.
  • epidemian 9y ago
    > Particular to have cleaner diffs. But why for function calls? Exactly the same reason :)
    • koolba 9y ago
      I suppose but that's usually an indication that an object would be more apt. If you have enough parameters that it needs to be wrapped, they're probably hard to track too.
      • piezoney 9y ago
        Well no, since you can use object destructuring. const fn = ( { arg1 = '', arg2 = [], arg3 = true } = {} ) => { }
        • scottmf 9y ago
          But isn't this already valid with trailing commas?
  • hajile 9y ago
    I like it for `compose()` function calls. Changing the parameters and order is fairly common, so the trailing comma becomes convenient for moving and adding parameters.
  • yzmtf2008 9y ago
    One small benefit is that it's now easier to generate code.