4d875e7e67
Markus on PR #629 — the cancel-not-flush contract is what the PersonMentionEditor onDestroy path relies on. Spell it out so future callers can rely on the same guarantee. Co-Authored-By: Claude Opus 4.7 <noreply@anthropic.com>
26 lines
904 B
TypeScript
26 lines
904 B
TypeScript
/**
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* Returns a debounced version of fn that delays invocation until after
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* `delay` ms have elapsed since the last call. The returned function
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* exposes a `cancel()` method that DROPS (does not flush) the pending
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* trailing invocation — essential when the host context (a destroyed
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* component, an unmounted editor) shouldn't fire the trailing call.
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*/
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// eslint-disable-next-line @typescript-eslint/no-explicit-any
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export function debounce<T extends (...args: any[]) => void>(
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fn: T,
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delay: number
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): T & { cancel: () => void } {
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let timer: ReturnType<typeof setTimeout> | undefined;
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const wrapped = ((...args: Parameters<T>) => {
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if (timer !== undefined) clearTimeout(timer);
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timer = setTimeout(() => fn(...args), delay);
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}) as T & { cancel: () => void };
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wrapped.cancel = () => {
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if (timer !== undefined) {
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clearTimeout(timer);
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timer = undefined;
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}
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};
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return wrapped;
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}
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