how to declare object in js 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: js create new object

let bike = {   name: 'SuperSport',    maker:'Ducati',    start: function() {       console.log('Starting the engine...');   }};bike.start();   //Output: Starting the engine.../* Adding method stop() later to the object */bike.stop = function() {    console.log('Applying Brake...');  }bike.stop();    //Output: Applying Brake...