JSFiddle - React, Tailwind, and code Playground

by Ksenia Polyakova

JavaScript

const xx = 'WUBWEWUBAREWUBWUBTHEWUBCHAMPIONSWUBMYWUBFRIENDWUB';

function songDecoder(song){
  return song.replace(/^(WUB)$/, '111');
}

console.log(songDecoder(xx));