function throttle(func, waitTime) {

  // Set isThrottling flag to false to start

  // and savedArgs to null

  let isThrottling = false,

    savedArgs = null;

  // Spread the arguments for .apply

  return function (...args) {

    // Return a wrapped function

    // Flag preventing immediate execution

    if (!isThrottling) {

      // Actual initial function execution

      func.apply(this, args);

      // Flip flag to throttling state

      isThrottling = true;

      // Queue up timer to flip the flag so future iterations can occur

      function queueTimer() {

        setTimeout(() => {

          // Stop throttling

          isThrottling = false;

          // Queueing up the next invocation after wait time passes

          if (savedArgs) {

            func.apply(this, savedArgs);

            isThrottling = true;

            savedArgs = null;

            queueTimer();

          }

        }, waitTime);