How do I remove undefined value in JS?

Question

How can I remove the undefined here? https://code.sololearn.com/WNkWegYD5YsI/#js

Answer 1

You may find answer in https://dmitripavlutin.com/7-tips-to-handle-undefined-in-javascript/

Answer 2

window.onload=function(){
Js code goes here
}

Answer 3

Abhay That didn't remove "undefined" text.

Answer 4

just call the function , don't use document.write

Answer 5

Thanks, I changed the last return and it fixed the issue!

Answer 6

And you don't have to write all that again and again ,just make it simple as I answered in the previous question