property inside object changing value after initalization to variable code example

Example 1: javascript object

var	person = {
	first_name : "Marty",
  	last_name : "Mcfly",
	born : 1968,
	died : 1933,
    lovers: ["Jennifer Parker","Baines McFly"]
};

Example 2: adding function to objects js

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