Understanding Closure: Detailed Exercises Explained

Q1:

In this above questions output will be - 0,1,2

Q2

so in this output will be 3,3,3
because var is a function scope so only one i shared by all iterations.
so in case of let i is created in all the iteration
{
let i = 0;
setTimeout(() => console.log(i), 0);
},
{
let i = 1;
setTimeout(() => console.log(i), 0);
},
{
let i = 2;
setTimeout(() => console.log(i), 0);
}

Q3

O/p will be -JS, Closures