How does the let keyword work in this code?

Asked Oct 20 '20 at 18:41

Active Oct 20 '20 at 18:41

Viewed 26 times

I'm new to programming and struggling with this code.

I know that "let" is block scoped, but how does the setTimeout access the "i" variable when its outside its sccope. I would really appreciate if someone could explain the code to me step by step.

      for (let i = 0; i < 10; i++) {
     console.log(i);
      setTimeout(function () {
      console.log('the number is ' + i);
      }, 1000);

      }

asked Oct 20 '20 at 18:41

delaka

1

It works just like var does – Derek Pollard Oct 20 '20 at 18:42
1

The `i` isn’t outside the setTimeout scope. The setTimeout is inside the same block. – evolutionxbox Oct 20 '20 at 18:42
@NicholasTower for this very basic demonstrations it relates better to beginners to give them something they can relate to. There's always nuance. – Derek Pollard Oct 20 '20 at 18:46

How does the let keyword work in this code?

0 Answers0