33 lines
953 B
TypeScript
33 lines
953 B
TypeScript
// oxlint-disable-next-line no-explicit-any
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export function debounce(fn: (...args: any[]) => void, delay = 500) {
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let timer: ReturnType<typeof setTimeout> | null = null;
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// oxlint-disable-next-line no-explicit-any
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let lastArgs: any[] | null = null;
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// oxlint-disable-next-line no-explicit-any
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const result = (...args: any[]) => {
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lastArgs = args;
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if (timer != null) clearTimeout(timer);
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timer = setTimeout(() => {
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timer = null;
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const argsToUse = lastArgs ?? [];
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lastArgs = null;
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fn(...argsToUse);
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}, delay);
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};
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result.cancel = () => {
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if (timer != null) clearTimeout(timer);
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timer = null;
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lastArgs = null;
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};
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// Invoke a pending call immediately instead of waiting out the delay
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result.flush = () => {
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if (timer == null) return;
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clearTimeout(timer);
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timer = null;
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const argsToUse = lastArgs ?? [];
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lastArgs = null;
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fn(...argsToUse);
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};
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return result;
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}
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