> Why with JavaScript <= 1.5,  Array.prototype._each method doesn't use
> a context object

> like

> Array.prototype.forEach(callback[, thisObject]) in JavaScript 1.6

> or

> Enumerable.prototype.each(iterator[, context]) ?

> thank you.

> > Hello,

> > Why with JavaScript <= 1.5,  Array.prototype._each method doesn't use
> > a context object

> > like

> > Array.prototype.forEach(callback[, thisObject]) in JavaScript 1.6

> > or

> > Enumerable.prototype.each(iterator[, context]) ?

> > thank you.

> Because `Array.prototype._each` (defined by Prototype.js) is bound to
> custom `each` implementation when native `Array.prototype.forEach` is
> unavailable (e.g. in older versions of Firefox). That custom
> implementation currently looks like:

> function each(iterator) {
>   for (var i = 0, length = this.length; i < length; i++)
>     iterator(this[i]);

> }

> while, to be consistent with `forEach`, it would need to look like:

> function each(iterator, context) {
>   for (var i = 0, length = this.length; i < length; i++)
>     iterator.call(context, this[i], i, this);

> }

> --
> kangax