important_info.js

var data = {};
var data1 = [];
var data2 = "nodir";
console.log(typeof data2); //jekono variable er data type ber korar jai

// What is invoking
// fuction call kora k function invoking bole

//Scope
//jekono language a second bracket diye block doire kora hoi,oi blick a kono variable declear korle oi variable baire theek access kora jai na
//kintu javaScript a second bracket diye block doire hoi na , block toire hoi function diye, tar mane function er vitor variable declear korle vaire theke access kora jabe animation:
//ai block ta kei scope bole

//closer
//closer parent function theke child function a variable pass kore, tai child function argument pass carai parent er variable use korte parent
//akoi vabe global variable sob jaigai niye jai. function,array,object etc vitor niye jai
//closer er moddhome child chara ar kew tar variable er access pai na.