News for hackers. Stuff that matters.

A comment on From jQuery to JavaScript and back again. Parent comment

Re:From jQuery to JavaScript and back again by ufo on Friday February 08, 2013 @09:24AM (#5187968)
functions scope sucks though :( Writing callbacks inside a loop can be a pain.
[ Parent | on HN ]
Re:From jQuery to JavaScript and back again by quarterto on Friday February 08, 2013 @10:21AM (#5188235)
ES6 will have proper block scoping using let. You can use that today in JavaScript 1.8 compliant engines (so far, just SpiderMonkey).
[ Parent | on HN ]
Re:From jQuery to JavaScript and back again by masklinn on Friday February 08, 2013 @10:24AM (#5188252)
That's not really an issue of function scope. It's an issue of closing over mutable bindings, though loops + function scope do make it more likely for the issue to arise.

And ES6 adds block scopes (via `let`, inherited from Mozilla's javascript extensions).

That strays from the original complaint though.

[ Parent | on HN ]