Writing JavaScript polyfills using DOM tree traversal | Code along with Vishal

In this one we will use the DOM traversal logic to write 3 JavaScript polyfills. getElemetById, getElementsByClass and querySelector. What else do you want me to talk about? Let me know in the comments! =========================================================== Follow me - Instagram - https://www.instagram.com/code.along.with.vishal Github - https://github.com/Vishal0203​​​ Facebook - https://www.facebook.com/CodeAlongWithVishal