JavaScript에서 DOM 변경을 어떻게 감지하고 대응할 수 있나요?

const observer = new MutationObserver((mutations) => {
  // Process mutations here...
});

observer.observe(targetElement, { childList: true, subtree: true });

targetElement.addEventListener('DOMNodeInserted', (event) => {
  // Node added
});

targetElement.addEventListener('DOMNodeRemoved', (event) => {
  // Node removed
});

const targetElement = document.getElementById('element-to-monitor');

const observer = new MutationObserver((mutations) => {
  mutations.forEach((mutation) => {
    if (mutation.type === 'childList' && mutation.addedNodes.length > 0) {
      const addedNodes = mutation.addedNodes;

      Array.from(addedNodes).forEach((node) => {
        if (node.nodeName === 'DIV' || node.nodeName === 'INPUT') {
          // Execute your function here...
        }
      });
    }
  });
});

observer.observe(targetElement, { childList: true, subtree: true });