# Debounce and throttle
URL: https://wwadd.dev/moves/javascript/debounce-throttle

Debounce waits until the noise stops (search inputs). Throttle guarantees a steady rate (scroll, resize).


```javascript
function debounce(fn, ms = 300) {
  let t;
  return (...args) => {
    clearTimeout(t);
    t = setTimeout(() => fn(...args), ms);
  };
}

function throttle(fn, ms = 200) {
  let last = 0;
  return (...args) => {
    const now = Date.now();
    if (now - last >= ms) {
      last = now;
      fn(...args);
    }
  };
}
```

## Related Moves
- [Promises and async patterns](https://wwadd.dev/moves/javascript/promises)