function debounce(func, wait) {
  let timeout;
  return function() {
    const context = this;
    const args = arguments;
    clearTimeout(timeout);
    timeout = setTimeout(function() {
      func.apply(context, args);
    }, wait);
  };
}

function throttle(func, limit) {
  let inThrottle;
  return function() {
    const args = arguments;
    const context = this;
    if (!inThrottle) {
      func.apply(context, args);
      inThrottle = true;
      setTimeout(function() {
        inThrottle = false;
      }, limit);
    }
  };
}

// 使用防抖
const debouncedFunction = debounce(function() {
  console.log('This will be logged after 500ms of silence.');
}, 500);

window.addEventListener('resize', debouncedFunction);

// 使用節流
const throttledFunction = throttle(function() {
  console.log('This will be logged at most once every second.');
}, 1000);

window.addEventListener('scroll', throttledFunction);