3 ms·

Given that "this" isn't referenced in the function, though, it's practically equivalent.

• simlevesque 9y ago
  I think one is more efficient memory wise but I'm not sure which one.
  • mmanfrin 9y ago
    The non-fat-arrow one, as it does not need to carry around the context of `this` with it.
    • hoosieree 9y ago
      Do you have a reference for this? I always thought arrows were lighter weight because their `this` is static rather than dynamic.