How to extend Array.prototype.push()?

Question

I\'m trying to extend the Array.push method so that using push will trigger a callback method, then perform the normal array function.

I\'m not quite sure how to do

Answer 1

The question is old, but for those who'll find this question nowadays, there's another, more native method to achieve this: Proxy

const target = [];

const handler = {
  set: function(array, index, value) {
    // call callback function here

    // The default behavior to store the value
    array[index] = value;

    // Indicate success
    return true;
  }
};

const proxyArray = new Proxy(target, handler);