That is one way to do it, albeit a seemingly naive way. I can’t imagine the entire page is linearly searched to update a UI element these days. Perhaps an entir

That is one way to do it, albeit a seemingly naive way. I can’t imagine the entire page is linearly searched to update a UI element these days. Perhaps an entire component in some frameworks? I don’t know and can’t easily find out the time complexity of things like React setState(), but would hope that for frontend code bases where there is a build step(s) and/or for typed frontend languages we could achieve better than linear (especially if N is every element on the page)