how to manage HTML DOM with vanilla JavaScript only?

GitHub 01 — Add or remove class from an elementbasic 02 — Allow to enter particular characters onlyintermediate 03 — Append to an elementbasic 04 — Attach or detach an event handlerbasic 05 — Calculate the size of scrollbarintermediate 06 — Change the website faviconintermediate 07 — Check an element against a selectorbasic 08 — Check if an element has given classbasic 09 — Check if an element is a descendant of anotherbasic … Read more