MutationObserver
Widely available since 2018-01-29
The MutationObserver API watches for changes to the DOM tree and calls a callback function when DOM changes occur.
Learning resources on MDN
Browser support
- Chrome 26 Released on 2013-03-26
- Chrome Android 26 Released on 2013-04-03
- Edge 12 Released on 2015-07-29
- Firefox 14 Released on 2012-07-17
- Firefox for Android 14 Released on 2012-06-26
- Safari 7 Released on 2013-10-22
- Safari on iOS 7 Released on 2013-09-18
Specifications
- DOM Standard (#interface-mutationobserver), from DOM Workstream (WHATWG).