js callback.apply code example

Example 1: apply() js

The apply() method accepts arguments in an array:

var arr = [6, 89, 3, 45];
var maximus = Math.max.apply(null, arr); // returns 89

Example 2: apply js

Function.prototype.construct = function (aArgs) {
  let fNewConstr = new Function("");
  fNewConstr.prototype = this.prototype;
  let oNew = new fNewConstr();
  this.apply(oNew, aArgs);
  return oNew;
};