# ❓ 实现模糊搜索结果的关键词高亮显示

为了简便一点就直接上了 Vue，只是为了出效果，没有做过多的边界检测。

实现一种思路。

<!DOCTYPE html>
<html lang="en">
  <head>
    <meta charset="UTF-8" />
    <meta name="viewport" content="width=device-width, initial-scale=1.0" />
    <title>Jeff</title>
    <script src="https://cdn.jsdelivr.net/npm/vue"></script>
  </head>
  <body>
    <div id="app">
      <input type="text" @input="handleInput" />
      <ul>
        <li v-for="(item,index) in filterList" v-html="item.title"></li>
      </ul>
    </div>
    <script>
      function debounce(func, delay) {
        if (!delay) delay = 300
        let time = null
        return function () {
          if (time) clearTimeout(time)
          time = setTimeout(() => {
            if (func) func.apply(this, arguments)
          }, delay)
        }
      }

      let handleInput = debounce(function (e) {
        const _val = e.target.value
        const reg = new RegExp(`(${_val})`, 'g')
        this.filterList = this.testList.reduce((pre, cur) => {
          if (cur.title.indexOf(_val) >= 0) {
            pre.push({
              ...cur,
              title: cur.title.replace(
                reg,
                '<span style="color:red;">$1</span>'
              ),
            })
          }
          return pre
        }, [])
      })

      var app = new Vue({
        el: '#app',
        data: {
          testList: [
            { id: 1, title: '我是1号，我是小李' },
            { id: 2, title: '我是2号，我是小张' },
            { id: 3, title: '我是3号，我是小熊' },
            { id: 4, title: '我是4号，我就是我' },
          ],
          filterList: [],
        },
        methods: {
          handleInput,
        },
      })
    </script>
  </body>
</html>

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