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2 snippets
javascript
star
Run a function only after the user stops typing or resizing.
function debounce(fn, wait = 300) {
let timer;
return (...args) => {
clearTimeout(timer);
timer = setTimeout(() => fn(...args), wait);
beginner
#performance#events#functions
javascript
One listener on a parent handles clicks for current and future children.
document.body.innerHTML = `
<ul id="todo">
<li>Write tests <button data-action="done">Done</button></li>
<li>Deploy <button data-action="done">Done</button></li>
</ul>`;
intermediate
#dom#events#performance
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