[solved] Code Playground Problem

Question

why my code doesn't work when I try to run it from mobile application while it is working when I try to run it from the website ?
I also tried it on my browser and it is working fine

Answer 1

Full browsers are sometimes better at hiding errors. I had to delete lines 2 and 3 to get it running in Chromium (the limited version of Chrome run by CodePlayground).

line 1: Replace comma with ; -- the comma chain doesn't call the two functions as expected.
line 2: clearInterval - You can remove this.
line 3: replace with startCountdown();
line 5: add a function definition (from line 3) and save a handle for the interval.
line 13: clear it so it stops running

Summary:
var seconds = prompt(...);
startCountdown();
function startCountdown() {
var savedHandle = setInterval(function(){...})
...
clearInterval(savedHandle);

Answer 2

CodePlayground link?

Answer 3

Yea forgot to include this :D

https://code.sololearn.com/Ww6R184xJuTL/#html

Answer 4

Thank you so much! This is a great answer