When should I use call() vs invoking the function directly?

Question

I\'ve got a JavaScript application that uses a lot of callbacks. A typical function will take a callback, and wrap it with another callback.

Namespace.foo = func         


        

Answer 1

One scenario I often use "call" is splice arguments:

const fn = function() {
    const args = Array.prototype.slice.call(arguments, 0);
    console.log(args);
}

Notice that arguments is an object. the args however is an array.