Please suggest some improvements in code

Question

https://code.sololearn.com/WG1Bk9AVlI9d/?ref=app

Answer 1

Don't repeat the question
https://www.sololearn.com/Discuss/3202534/?ref=app

Answer 2

document.write(prompt("Enter string:").split("").reverse().join(""))

replace all JavaScript and use this one-liner