What does this code print? for (var i = 0; i console.log(i), 0); }

JavaScript · Middle · Question 12 of 75

What does this code print?

for (var i = 0; i < 3; i++) {
  setTimeout(() => console.log(i), 0);
}

✓Correct answer: 3 3 3
20 1 2
3undefined three times

Explanation

var creates one variable for the whole function, and by the time the timers fire, the loop has finished with i = 3. With let, each iteration gets a new binding and the output is 0 1 2.

What does this code print?

Explanation

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