datatype.js

"use strict"; //treat all javacript code as a new version

// alert("hello") we are using node js not browers

console.log(3+5); console.log("ironman");
// code readability should be high

let name="ironman" // its a string datatype 
let age = 195 // its a integer datatype 
let isloggeIn = true // its boolean datatype

// there are more datatype
//premitive datatype=>

//number =>2 to 53
// bigint => for use big number in javascript in trading or stock market
// boolean=> true/false
// null => standlone value is  empaty
// there are different in null and undefined datatype
// undefined => is value not defined  
// symbol => for find uniqueness we use symbole in react and more

//non- premitive datatype/ reference datatype
// object //array // functions


console.log(typeof undefined); // undefined
console.log(typeof null); // Object

/* if (typeof 34 == typeof 35346) {
    console.log("right")
} else {
    console.log("wrong") 
} */


console.log();