JavaScript problem

Hi guys!
Can someone say me why in this code, the alert doesn't work? https://pastebin.com/AaBZupzi

Comments

[Adam Crockett 🌀]

Hi Andy, maybe you could share a link to the file instead? It hasn't come through so well on this post. Alternatively please wrap your code in backtick quotes?

 ` 3 of those quotes at the start of your code and 3 at the end

[AndyBullet]

I put the link.

[Adam Crockett 🌀]

It might be that prompt('Choose a username:'); returns truthfully always?