Alter and Assign Object Without Side Effects

Question

I currently have the following code:

var myArray = [];
var myElement = {
  id: 0,
  value: 0
}

myElement.id = 0;
myElement.value = 1;
myArray[0] = myElement         


        

Answer 1

Objects are passed by reference.. To create a new object, I follow this approach..

//Template code for object creation.
function myElement(id, value) {
    this.id = id;
    this.value = value;
}
var myArray = [];

//instantiate myEle
var myEle = new myElement(0, 0);
//store myEle
myArray[0] = myEle;

//Now create a new object & store it
myEle = new myElement(0, 1);
myArray[1] = myEle;