es-next-tools/dist/function/throttle.js

A comprehensive utility library for JavaScript and TypeScript that provides a wide range of functions for common programming tasks, including mathematical operations, date manipulations, array and object handling, string utilities, and more.

/**
 * Creates a throttled function that only invokes the original function at most once per every `wait` milliseconds.
 * @param {T} fn - The function to throttle.
 * @param {number} wait - The number of milliseconds to throttle invocations to.
 * @returns {Function} A new, throttled function.
 * @template T
 * @example
 * const throttledFn = throttle(() => console.log('Throttled'), 1000);
 * // Calling throttledFn multiple times within 1 second will only log once
 */
export function throttle(fn, wait) {
    let lastCall = 0;
    return (...args) => {
        const now = Date.now();
        if (now - lastCall >= wait) {
            lastCall = now;
            fn(...args);
        }
    };
}