javascript foo.call(object) vs. object.foo()
javascript, jquery
Solution
The problem is that "foo" might not actually be a property of "context". When that's the case, the only real choice is to use `.call()` (or `.apply()`, as appropriate).
If you do have an object with a "foo" property that's a function, then there's no real reason to use `.call()`.
Problem
i was looking on the jQuery source code and then i saw that they use `foo.call(context)` instead of `context.foo()`. for example- assuming `this` is array they use: ``` return slice.call( this ); ``` instead of: ``` return this.slice(); ``` what is the difference and is it the prefer way (in terms of performance) doing those calls?