objects javascript

1var obj = {
2  prop1: 5,
3  obj2: {
4    prop1: [3, 6, 3],
5    prop2: 74,
6    prop3: {
7      str: "Hello World"
8    }
9  }
10};
11
12console.log(obj.obj2.prop3.str); //output: "Hello World"

1var	person = {
2	first_name : "Marty",
3  	last_name : "Mcfly",
4	born : 1968,
5	died : 1933,
6    lovers: ["Jennifer Parker","Baines McFly"]
7};

1let object = {
2  'key1': 'value1',
3  'key2': 'value2',
4  'keyn': 'valuen',
5};
6console.log(object);

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

1let obj = {
2// fields
3  name:"value",
4  num: 123,
5//methods
6  foo: function(){}
7  
8}

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