1. Creating object with a constructor:

function vehicle(name,maker,engine){
    this.name = name;
    this.maker = maker;
    this.engine = engine;
}

//new keyword to create an object
let car  = new vehicle('GT','BMW','1998cc')

1. Using object literals:

const obj = { }

1. Creating object with Object.create() method:

The Object.create() method creates a new object, using an existing object as the prototype of the newly created object.

const coder = {
    isWorking : false,
    myIntroduction : function(){
        console.log(`Name is ${this.name}.Am I working?: ${this.isWorking}`);
    }
};

const newObj = Object.create(coder);

newObj.name = 'Ruchika';
newObj.isWorking = true;
newObj.myIntroduction();

1. Using es6 classes:

//using es6 classes
class City {
  constructor(name, maker, engine) {
    this.name = name;
    this.place =  maker;
  }
}

let newObj = new City('Mumbai', 'juhu');

console.log(newObj.name);  //Mumbai