Difference between Call and Apply

1. The call method always expect comma separated parameters.

2. The apply method always expect array of arguments.

3. However, call and apply both expecting object as first parameter.

Note:

In ES6, we know spread operator ... and you can pass an array (or any iterable) as a list of arguments.

So using this spread with call, almost you are achieving apply concept.

1 2 3 4

let args = [1, 2, 3]; func.call(context, ...args); // pass an array as list with spread operator func.apply(context, args);

From the above code you can find some minor difference, let see what is that

1. The spread operator ... is iterable args.

2. The apply accepts only array-like args.

So an iterate is possible with call and it works.  Whereas we expect an array-like, apply works.

Generally apply will be faster because of its single operation.