User input in javascript

https://nodejs.org/en/knowledge/command-line/how-to-prompt-for-command-line-input/

prompt() is a browser specific function... node.js is designed to run at server side: what is the purpose of user input in this context?

Well, how can I take user input at node.js?

Prompt-sync doesn't work

Yes it works at my windows command prompt and I often use prompt-sync while coding. But it doesn't work at sololearn codeplayground and that's why I can't completing the projects of javascript courses which is mandatory to acquire certificate.