add new method to an object in js code example

Example 1: javascript add to object

var element = {}, cart = [];
element.id = id;
element.quantity = quantity;
cart.push(element);

// Array of Objects in form {element: {id: 10, quantity: 10} }
var element = {}, cart = [];
element.id = id;
element.quantity = quantity;
cart.push({element: element});

Example 2: adding function to objects js

var myObj = {
	myFunc: function(param){
      //do stuff
    }
}