Tell us what’s happening: it works as steps mentioned, but still show errors, 10,11,12,13 and 15, 16. Your code so far  <!DOCTYPE html> <html> <head> <meta charset="UTF-8" /> <title>OTP Generator</title> <link rel="stylesheet" href="styles.css" /> <script s…

Did you update the code in the meantime? I’m getting with it just test 10 to fail. What’s interesting is when preview is loaded, it’s not possible to use Generate OTP button for a few seconds, because it’s disabled. Is that intended?

Thank you, No I didn’t update any code, i think changed for something, and didn’t to set back zero. but now, 13, 15 and 16 showing error.

Now? I’m still seeing only test 10 failing with this code.

fixed it, i used useRef, otherwise timer is not setting 0. enabling disable works fine in background timer is not setting.

Build a One-Time Password Generator - Build a One-Time Password Generator

Programming JavaScript

skglearn November 30, 2025, 12:40pm 5

New-OPT-Error1

I can’t see that , i don’t know , how to check this error, i still try to find out what i am doing wrong.

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