Think of it this way: dynamic binding no, dynamic assignment yes.
> So this means, no function expressions depending on the condition? I.e.:
>
> this["foo"] = isDebug ? function () { ... } : function () { ... }
var foo = isDebug ? function() { ... } : function() { ... }
> Or I guess, such cases will be replaced with function statements, right?
>
> if (isDebug) {
> function debug() { ... }
> } else {
> function debug() { ... }
> }
Sure, that would be fine too.
> However, no dynamic function creation anymore (and actually, any binding).
Of course you can still do dynamic function creation. You just can't do dynamic
binding.
> I just remember nice snippets such as:
>
>
> ['Object', 'Array', 'String', 'Function', 'RegExp'].forEach(function
> (constructorName) {
> this['is' + constructorName] = function (object) {
> return Object.prototype.toString.call(object) == '[object ' +
> constructorName + ']';
> };
> });
>
> which allowed me to create several test-function such as "isString",
> "isArray", etc.
>
> Nothing of this anymore in ES6, right?
For the most part, this will not be possible. You can do it in a phased way, by
creating the globals dynamically via the module loader *before* evaluating the
script that wants to use them. E.g.:
['Object', 'Array', 'String', 'Function',
'RegExp'].forEach(function(constructorName) {
ModuleLoader.defineGlobal('is' + constructorName, function(object) {
return Object.prototype.toString.call(object) == '[object ' +
constructorName + ']';
});
});
But these globals won't be accessible to scripts that have already been
compiled; only to scripts that are subsequently compiled and evaluated, e.g.
via ModuleLoader.eval.
Dave
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