RocketChat/Rocket.Chat

import { throttle } from 'underscore';

export function throttledCounter(fn: (counter: number) => unknown, wait: number) {
    let counter = 0;

    const throttledFn = throttle(
        () => {
            fn(counter);

            counter = 0;
        },
        wait,
        { leading: false },
    );

    return () => {
        counter++;
        throttledFn();
    };
}