throttle function

index.ts

/**
 * Call fn not more often but and not less then ms
 * @param {function} fn - function what need to call not often but and not less then ms
 * @param {number} ms - time in milliseconds
 * @return (any[]) => void
 */
export const throttle = (fn: (...args: any[]) => void, ms: number = 0) => {
  let timeoutId = null;
  let lastCall = 0;

  return function(...args: any[]): void {
    const now = Date.now();
    clearTimeout(timeoutId);
    if (now - lastCall >= ms) {
      lastCall = now;
      return fn.apply(this, args);
    }

    timeoutId = setTimeout(() => {
      lastCall = Date.now();
      fn.apply(this, args);
    }, ms);
  };
};