This content originally appeared on DEV Community and was authored by zain ul abdin
MutationObserver is a hidden gem in JavaScript that can make your web app super responsive.
It lets you watch for changes in the DOM—like when elements are added, removed, or modified—and react instantly. Perfect for dynamic UIs and real-time updates!
Here’s how it works:
const targetNode = document.getElementById('app'); // Element to observe
const observer = new MutationObserver((mutations) => {
mutations.forEach(mutation => {
if (mutation.type === 'childList') {
console.log('A child node was added or removed.');
}
});
});
observer.observe(targetNode, { childList: true, subtree: true });
With MutationObserver, you can create highly interactive components that respond to changes efficiently without relying on heavy frameworks.
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This content originally appeared on DEV Community and was authored by zain ul abdin
zain ul abdin | Sciencx (2024-09-06T13:14:40+00:00) Let’s talk about MutationObserver. Retrieved from https://www.scien.cx/2024/09/06/lets-talk-about-mutationobserver/
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