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| 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 | 3x 8x 3x 7x 7x 7x | import { Callback, CancelCallback } from "./_types";
/**
*
* @example
* Debounce a Function
* ```ts
* const callback = (arg) => console.log(arg);
*
* const debouncedCallback = debounce(callback);
*
* debouncedCallback(100, 1);
* // wait 50ms
*
* debouncedCallback(100, 2);
* // wait 100ms
*
* // callback is called with arg = 2
* ```
*
* @param callback
* @returns
*/
type Debounce = <TArgs extends unknown[] = []>(
callback: Callback<TArgs>
) => (ms: number, ...args: TArgs) => CancelCallback;
export const debounce: Debounce = (
callback,
// internal variables:
timeout?: NodeJS.Timeout,
cancel = () => {
clearTimeout(timeout);
}
) => {
return (ms, ...args) => {
cancel();
timeout = setTimeout(callback, ms, ...args);
return cancel;
};
};
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