second.js

// DataTypes IN Javascript

//1)Number
let age=15;
console.log("The value of age is : ",age);
console.log(typeof age)


//2)String
let name="Ganesh ghode"
console.log("The name is : ",name)
console.log(typeof name)

//3)Symbol
let my=Symbol("hello")
console.log(my)

var id = Symbol ( "id" ) ; 
console.log(id)
let ss=[id]
console.log("the symbol is: ", ss)
// let user = { name : "John" , [ id ] : 123 // not "id": 123 } ;


//4)Undefined
let state1;
console.log(state1)



//5)Null
let state=null;
console.log(state)
console.log(typeof state)

//6)BigInt

/*not used for many times */

//7)Boolean

let GameOn=true;
let Gameof=false;
console.log(GameOn)
console.log(Gameof)