var_let_const.js

   // age= 24; variable declare ar somoy kicu na dile 1.fucntional scope(sudu function er vitor diclare korle ar baire pabe na) 2.hoist er subidha nai; mane declare er age access kora jabe na; 3. value change kora jai; 
   //var age = 40;1. functional scope(sudu function er vitor diclare korle ar baire pabe na); 2. hoisting subidha ace(ai aktatei sudu hoisting subidha ace) 3. redeclare kora jai; 4. value change kora jai
   //let age = 50; 1. block scope (je kono  second bracket er vitor declare korle ar vaire pabe na) 2.hoisting subidha nai; 3.redeclare kora jai na, 3. redeclare kora jai na; 4. vlaue change kora jai
   // const age =85;1.block scope  2.hoisting subidha nai; 3. value change kora jai na (constant); 4.redeclare kora jai na


    age =25;


for(i=0;i<1; i++){
    // console.log(name1,age,height);
    age=520;
}
function check(){
    
}
console.log(age);
check();