Jeff Walden (2014-08-26T16:27:24.000Z)
domenic at domenicdenicola.com (2014-09-08T23:25:29.070Z)
On 08/26/2014 09:14 AM, Brendan Eich wrote: > Agreed, this is the correct-and-most-concise way to do it. It's not the most correct way to do it. `a + ""` performs ToPrimitive(a, hint = None), whereas ToString(a) performed ToPrimitive(a, hint = String). The former consults `valueOf`, then `toString`, the latter the reverse. > using `String(any)` to invoke ToString is verbose and fragile, because `String` could be rebound :-P. Generally polyfills are fine with that limitation, and only us language pedants need worry/care about `String` being rebound. All the array-method polyfills we've provided on MDN depend on non-rebinding of some builtin function or other. It's not that big a deal.