Could you please help me out?

JavaScript
#1 
var printNumTwo;
for (var i = 0; i < 3; i++) {
  if (i === 2) {
    printNumTwo = function() {
      return i;
    };
  }
}
console.log(printNumTwo());
// returns 3
  1. what’s the purpose for if condition here?
    2)when i=3, the how the “if Condition is bypassed” and " return i" gives 3?

i am stuck here since two days but cant get it. Please help me out with the flow.

#2

The purpose of this lesson is to teach the importance of correctly scoping your variables.

With the if(i ===2) you would expect printNumTwo to print the number two because it is initialized when i is 2 BUT printNumTwo doesn’t print the number 2, it prints the variable i and the variable i is changed to 3 at the end of the for loop. So even though i was 2 when printNumTwo was initialized, it will always print whatever the current value of i is.

#3

hi there, maybe change i===2 to i == 2 and i < 3 to i < 2

#4

it’s awesome you want to help! though this was a question on a specific freeCodeCamp challenge, you can see this code in the description of this challenge:

ES6: Compare Scopes of the var and let Keywords

#5

Declare variable i with “let” not with "var " that’s resolve by ES6.

#6

Thanks for your encourage words, I forgot that it was in ES6 lesson. I’m better come back to code camp and learn asap.

#7