React에서 동적으로 Library 추가하기

useEffect(() => {
  const axiosUrl = 'https://unpkg.com/axios/dist/axios.min.js';
  const scripts = document.getElementsByTagName('script');
  for (const script of scripts) {
    if (script.src.includes(axiosUrl)) {
      return;
    }
  }

  const axiosScript = document.createElement('script');
  axiosScript.src = axiosUrl;
  axiosScript.async = true;
  axiosScript.defer = true;
  window.document.body.appendChild(axiosScript);
  axiosScript.onload = () => {
    axios
      .get('https://jsonplaceholder.typicode.com/todos/1')
      .then((res: any) => {
        console.log('axios res? ', res);
      });
  };
});