DOM Manipulation: Treating Your Webpage Like a Live Object
The DOM is a live tree of your webpage's HTML. DOM manipulation is how JavaScript changes that tree—adding, removing, or updating elements. This is key for all interactive web development. The footgun: direct, frequent manipulation is slow.
Think of the DOM as a live, in-memory tree representing your webpage's HTML. DOM manipulation is how your JavaScript code changes the page's structure, style, or content after it loads. It powers everything from updating a cart total to rendering API data. The footgun: frequent, direct DOM manipulation is slow and causes 'layout thrashing.' Modern frameworks use a Virtual DOM to batch changes efficiently and avoid this performance hit.
Read the original → developer.mozilla.org
- #dom
- #web apis
- #javascript
- #frontend
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