Javascript call() & apply() vs bind()?

Question

I already know that apply and call are similar functions which setthis (context of a function).

The difference is with the way

Answer 1

Imagine, bind is not available. you can easily construct it as follow :

var someFunction=...
var objToBind=....

var bindHelper =  function (someFunction, objToBind) {
    return function() {
        someFunction.apply( objToBind, arguments );
    };  
}

bindHelper(arguments);