youdive https://blog.hatena.ne.jp/youdive/ sai_dive IL https://youdive.hatenadiary.com/ 非同期通信 fetch 構文 const url = 'https://〜'; const options = {オプション内容}; fetch(url, options); 例 urlとoptionsを設定したある状態で戻り値をjsonでコンソール確認 const fetchTest = fetch(url, options) .then( response => response.json() ); console.log(fetchTest); 190 <iframe src="https://hatenablog-parts.com/embed?url=https%3A%2F%2Fyoudive.hatenadiary.com%2Fentry%2F2021%2F09%2F18%2F211137" title="【JavaScript】非同期通信 fetch - sai_dive IL" class="embed-card embed-blogcard" scrolling="no" frameborder="0" style="display: block; width: 100%; height: 190px; max-width: 500px; margin: 10px 0px;"></iframe> Hatena Blog https://hatena.blog 2021-09-18 21:11:37 rich https://youdive.hatenadiary.com/entry/2021/09/18/211137 1.0 100%