How jQuery implements front-end search function-JS Tutorial-php.cn

How jQuery implements front-end search function

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Release： 2017-12-31 11:05:39

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What I bring to you this time is jQueryHow to implement the front-end search function. The front-end search function requires a combination of HTML and jQuery. This article will give you a good analysis.

html Code:

<!DOCTYPE html>
<html lang="en">
<head>
 <meta charset="UTF-8">
 <title>工程轻量化与可靠性技术实验室</title>
</head>
<body>
<div class="content-right">
   <input type="text"><input type="submit" value="搜索">
   <h3>应用流体学</h3>
   <ul id="content_news_list">
    <li><span>2015-7-8</span><a href="">这里是文章的标题1</a></li>
    <li><span>2015-7-8</span><a href="">这里是文章的标题2</a></li>
    <li><span>2015-7-8</span><a href="">这里是文章的标题3</a></li>
    <li><span>2015-7-8</span><a href="">这里是文章的标题4</a></li>
    <li><span>2015-7-8</span><a href="">这里是文章的标题5</a></li>
    <li><span>2015-7-8</span><a href="">这里是文章的标题6</a></li>
    <li><span>2015-7-8</span><a href="">这里是文章的标题6</a></li>
    <li><span>2015-7-8</span><a href="">这里是文章的标题6</a></li>
    <li><span>2015-7-8</span><a href="">这里是文章的标题6</a></li>
    <li><span>2015-7-8</span><a href="">这里是文章的标题4</a></li>
   </ul>
  </div>
</body>

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jQuery Code:

<script type="text/javascript">
  $(function(){
   $("input[type=text]").change(function () {
    var searchText = $(this).val();//获取输入的搜索内容
    var $searchLi = "";//预备对象，用于存储匹配出的li
    if (searchText != "") {
     //获取所有匹配的li
     $searchLi = $("#content_news_list").find(&#39;a:contains(&#39;+ searchText +&#39;)&#39;).parent();
     //将内容清空
     $("#content_news_list").html("");
    }
    //将获取的元素追加到列表中
    $("#content_news_list").html($searchLi).clone();
    //判断搜索内容是否有效，若无效，输出not find
    if ($searchLi.length <= 0) {
     $("#content_news_list").html("<li>not find</li>")
    }
   })
   $("input[type=submit]").click(function () {
    $("searchText").change();
   })
  })
</script>

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Retrieve elements in the list by keyword and add them to ul.

$(':contains(text)') gets the element containing the specified character. The string can be text directly contained in the element, or contained in a child element .

This method implements a simple retrieval function by determining whether the obtained element contains the searched characters.

I believe you have mastered the method after reading the above introduction. For more exciting information, please pay attention to other related articles on the php Chinese website!