搜索提示 – PM开源达人

<!DOCTYPE html>
<html lang="en">
  <head>
    <meta charset="UTF-8" />
    <title>搜索提示</title>
  </head>
  <body>
    <input id="search" type="text" />
    <ul id="result"></ul>

    <script type="module">
      import { getJSON } from './ajax/index.js';

      const searchInput = document.getElementById('search');
      const resultList = document.getElementById('result');

      const url = 'https://www.imooc.com/api/http/search/suggest?words=';

      const handleInputEvent = () => {
        if (searchInput.value.trim() !== '') {
          getJSON(`${url}${searchInput.value}`)
            .then(response => {
              console.log(response);
              // [{word: "jsp"}]

              let html = '';
              for (const item of response.data) {
                html += `<li>${item.word}</li>`;
              }

              resultList.innerHTML = html;

              resultList.style.display = '';

              // resultList.innerHTML = '<li>jsp</li><li>js</li>';
            })
            .catch(err => {
              console.log(err);
            });
        } else {
          resultList.innerHTML = '';
          resultList.style.display = 'none';
        }
      };

      let timer = null;
      // IE9 开始支持
      searchInput.addEventListener(
        'input',
        () => {
          // handleInputEvent();

          if (timer) {
            clearTimeout(timer);
          }
          // jsa
          timer = setTimeout(handleInputEvent, 500);
        },
        false
      );
    </script>
  </body>
</html>
Ajax

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