Huang Xin
44885f2901
* sync: add download/upload progress indicator * chore: apt update before installing system dependencies
39 lines
925 B
TypeScript
39 lines
925 B
TypeScript
export const throttle = <T extends (...args: Parameters<T>) => void | Promise<void>>(
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func: T,
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delay: number,
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): ((...args: Parameters<T>) => void) => {
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let lastCall = 0;
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let timeout: ReturnType<typeof setTimeout> | null = null;
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let lastArgs: Parameters<T> | null = null;
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return (...args: Parameters<T>): void => {
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const now = Date.now();
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const remaining = delay - (now - lastCall);
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const callFunc = () => {
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lastCall = Date.now();
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timeout = null;
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func(...args);
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};
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if (remaining <= 0) {
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if (timeout) {
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clearTimeout(timeout);
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timeout = null;
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}
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callFunc();
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} else {
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lastArgs = args;
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if (!timeout) {
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timeout = setTimeout(() => {
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timeout = null;
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if (lastArgs) {
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func(...(lastArgs as Parameters<T>));
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lastArgs = null;
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}
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}, remaining);
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}
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}
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};
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};
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