@rooks/use-throttle
Version:
A throttle hook for react
36 lines (33 loc) • 1.11 kB
JavaScript
import { useState, useRef, useCallback, useEffect } from 'react';
/**
* useThrottle
* Throttles a function with a timeout and ensures
* that the callback function runs at most once in that duration
* @param fn The callback to throttle
* @param timeout Throttle timeout
*/
function useThrottle(fn, timeout = 300) {
const [ready, setReady] = useState(true);
const timerRef = useRef(undefined);
if (!fn || typeof fn !== "function") {
throw new Error("As a first argument, you need to pass a function to useThrottle hook.");
}
const throttledFn = useCallback((...args) => {
if (!ready) {
return;
}
setReady(false);
fn(...args);
}, [ready, fn]);
useEffect(() => {
if (!ready) {
timerRef.current = window.setTimeout(() => {
setReady(true);
}, timeout);
return () => window.clearTimeout(timerRef.current);
}
}, [ready, timeout]);
return [throttledFn, ready];
}
export default useThrottle;
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