feat(throttle): add tohrottling util
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32
src/shared/lib/utils/throttle/throttle.ts
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32
src/shared/lib/utils/throttle/throttle.ts
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/**
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* Throttle function execution to a maximum frequency.
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*
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* @param fn Function to throttle.
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* @param wait Maximum time between function calls.
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* @returns Throttled function.
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*/
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export function throttle<T extends (...args: any[]) => any>(
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fn: T,
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wait: number,
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): (...args: Parameters<T>) => void {
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let lastCall = 0;
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let timeoutId: ReturnType<typeof setTimeout> | null = null;
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return (...args: Parameters<T>) => {
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const now = Date.now();
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const timeSinceLastCall = now - lastCall;
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if (timeSinceLastCall >= wait) {
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lastCall = now;
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fn(...args);
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} else {
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// Schedule for end of wait period
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if (timeoutId) clearTimeout(timeoutId);
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timeoutId = setTimeout(() => {
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lastCall = Date.now();
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fn(...args);
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timeoutId = null;
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}, wait - timeSinceLastCall);
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}
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};
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}
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