"use strict";// treat all code as new version of js

//alert (3+3)// on browser not here

//string

let name="Beluga"

//number

let age=12

//undefined

let address;

//object

let salary=null

//bool

let married=false

//printing

console.log(name,age,address,salary,married)

//finding the type

console.log(typeof(salary))

console.log(typeof(married))

// more over

// number => 2 to power 53

// bigint

// string => ""

// boolean => true/false

// null => standalone value

// undefined =>

// symbol => unique

//conversion of no into string success

let weight=68

let weightinstring= String (weight)

console.log(typeof(weightinstring))

console.log(weightinstring)

//conversion of string into n0 notsucess

let lastname="suchita"

let lastnameconversion=Number(lastname)

console.log(typeof(lastnameconversion))

console.log(lastnameconversion)

//bool to no success

let marriedtono=Number(married)

console.log(typeof(marriedtono))

console.log(marriedtono)

// not suceess

let password="33abf"

let passwordintonotry=Number(password)

console.log(typeof(passwordintonotry))

console.log(passwordintonotry)

//operation

//1

let score=33

let scoreneg=-score

console.log(scoreneg)

//2

console.log(3+4)

console.log(2**2)//power

//3 concatinate

let str1='hi'

let str2='shutup'

let str3=str1+str2

console.log(str3)

//4

console.log("1" + 2);

console.log(1 + "2");

console.log("1" + 2 + 2);

console.log(1 + 2 + "2");

//5 tricky way to print 1 and 0

console.log(+true);

console.log(+"");