Display a message on the console with a delay

Question

I have this code:

function printDelay(j) {
  if (j != 0) {
    setTimeout(() => {
      console.log(j);
    }, 1000);
    j--;
    print(j);
  } else {
    console.log("END!");
  }
}

printDelay(5);

Why it doesn't print the numbers 5,4,3,2,1 with a delay of 1 second?

Does this answer your question? [setTimeout in for-loop does not print consecutive values](https://stackoverflow.com/questions/5226285/settimeout-in-for-loop-does-not-print-consecutive-values) — Anurag Srivastava, Aug 19 '22 at 18:25
setTimeout is always executed immediately, only the callback of setTimeout is executed after the 1000 ms delay. — Suboptimierer, Aug 19 '22 at 18:26

WillD · Answer 1 · 2022-08-19T18:50:37.270

3

You need to fix a typo where you call print(j) instead of printDelay(j); also you must move it (as well as the j-- line) inside the callback of setTimeout.

function printDelay(j) {
  if (j != 0) {
    setTimeout(() => {
      console.log(j);
      j--;
      printDelay(j);
    }, 1000);
   
  } else {
    console.log("END!");
  }
}

printDelay(5);

edited Aug 19 '22 at 18:50

answered Aug 19 '22 at 18:28

WillD

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Display a message on the console with a delay

1 Answers1