31 lines
783 B
TypeScript
31 lines
783 B
TypeScript
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type ThrottledFunction<T extends (...args: any) => any> = (...args: Parameters<T>) => void;
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export function throttle<T extends (...args: any) => any>(func: T, ms: number): ThrottledFunction<T> {
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let isThrottled = false;
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let savedArgs: Parameters<T> | null;
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let savedThis: any;
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function wrapper(this: any, ...args: Parameters<T>) {
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if (isThrottled) {
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savedArgs = args;
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savedThis = this;
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return;
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}
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func.apply(this, args);
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isThrottled = true;
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setTimeout(function () {
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isThrottled = false;
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if (savedArgs) {
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wrapper.apply(savedThis, savedArgs);
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savedArgs = savedThis = null;
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}
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}, ms);
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}
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return wrapper;
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} |