Javascript add extra argument

Question

Lets take a look at this code:

var mainFunction = function() {
  altFunction.apply(null, arguments);
}

The arguments that are passed to \"mainF

Answer 1

In this case it could be more comfortable to use call() instead of apply():

function first(parameter1, parameter2) {

  var parameter3 = "123";

  secondFunction.call(
    this,
    parameter1,
    parameter2,
    parameter3);
},