VIDEO 17 javascript

////////////////**************OBJECTS part 2  IN JS **********////////////////////

////////// singleton objects 

//const tinderuser = new Object()

const tinderUser ={} // assingning a function 

tinderUser.id = "123abc" // putting value in function
tinderUser.name = "sammy " // putting value in function
tinderUser.isloggedin = false // putting value in function

console.log(tinderUser); // { id: '123abc', name: 'sammy ', isloggedin: false }
console.log(tinderUser.name); // sammy



/// nested functions 
const regularuser ={
    email: "some@gmail.com",
    fullname: {
        userfullname: {
            firstname: "hitesh",
            lastname: "sharma"
        }
    }
    
}

//console.log(regularuser);
console.log(regularuser.fullname.userfullname.firstname);/// hitesh


//// combining 2 objects together into a single object 

const obj1 = { 1: "a" , 2: "b" }
const obj2 = { 3: "a" , 4: "b" }
const obj4 = { 5: "a" , 6: "b" }

//// assingnuing function 
////const obj3 = Object.assign({}, obj1 , obj2 , obj4)
// syntax {} means target amd obj1 obj2 obj4 all three are source 

/// drop function
//const obj5 = {...obj1, ...obj2, ...obj4};
//console.log(obj5);

/// methods inside arrays 
const users = [
    {
        id: 1, 
        name: "tanishq dhingra "
    },
    {
        id: 1, 
        name: "tanishq dhingra "
    },
    {
        id: 1, 
        name: "tanishq dhingra "
    }
    ]
    console.log(users[1].id);
    
// function for getting the keys present in objects 
console.log(Object.keys(tinderUser)); 

// function for getting the values present in objects 
console.log(Object.values(tinderUser)); 

// function for getting the entries present in objects 
console.log(Object.entries(tinderUser));

// function for checking properties present in objects  and it will give answer in boolean 
console.log(tinderUser.hasOwnProperty('isLoggedIn'));