1person = {
2    'name':'john smith'
3    'age':41
4};
5
6console.log(person);
7//this will return [object Object]
8//use
9console.log(JSON.stringify(person));
10//instead

1// To make an object literal:
2const dog = {
3    name: "Rusty",
4    breed: "unknown",
5    isAlive: false,
6    age: 7
7}
8// All keys will be turned into strings!
9
10// To retrieve a value:
11dog.age; //7
12dog["age"]; //7
13
14//updating values
15dog.breed = "mutt";
16dog["age"] = 8;

1function Dog() {
2  this.name = "Bailey"; 
3  this.colour = "Golden"; 
4  this.breed = "Golden Retriever";
5  this.age = 8;
6}

1[object Object]
2Object { }
3{ }
4

1'use strict';
2
3var obj = {
4  a: 10
5  b:20
6};
7
8Object.defineProperty(obj, 'b', {
9  get: () => {
10    console.log(this.a, typeof this.a, this); // undefined 'undefined' Window {...} (or the global object)
11    return this.a + 10; // represents global object 'Window', therefore 'this.a' returns 'undefined'
12  }
13});
14

1//initialized object
2var object = {
3  property1: "a", 
4  property2: "b",
5}
6
7//object initializer function
8function object(property1, property2)
9{
10	this.property1 = property1;
11  	this.property2 = property2;
12}
13
14//initializing using the initializer function
15var mouse = new object("ab", "cd");