jQWidgets jqxTagCloud insertAt()方法

jQWidgets jqxTagCloud insertAt()方法

jQWidgets是一个JavaScript框架,用于为PC和移动设备制作基于Web的应用程序。它是一个非常强大的、优化的、与平台无关的、并被广泛支持的框架。_jqxTagCloud 用于显示一组用户生成的标签,与网站上的文章、帖子或视频一起。

insertAt()方法用于在指定jqxTagCloud的特定索引的元素之前插入一个元素。

语法:

$('#jqxTagCloud').jqxTagCloud('insertAt', index, tagItem);

参数:该方法接受两个参数,如下图所示。

  • index。这是新元素要插入的索引。
  • tagItem:这是新元素。

返回值:该方法不返回任何值。

链接的文件:从给出的链接中下载jQWidgets。在HTML文件中,找到下载文件夹中的脚本文件。

<link rel=”stylesheet” href=”jqwidgets/styles/jqx.base.css” type=”text/css” />
<script type=”text/javascript” src=”scripts/jquery.js”></script>
<script type=”text/javascript” src=”jqwidgets/jqxcore.js”></script>
<script type=”text/javascript” src=”jqwidgets/jqxdata.js”></script>
<script type=”text/javascript” src=”jqwidgets/jqxtagcloud.js”></script>
<script type=”text/javascript” src=”jqwidgets/jqx-all.js”></script>

例子:下面的例子说明了jQWidgets insertAt() 方法。在下面的例子中,一个新元素将被插入到第0个元素之前。

<!DOCTYPE html>
<html lang="en">
  
<head>
    <link rel="stylesheet" 
          href="jqwidgets/styles/jqx.base.css" 
          type="text/css"/>
    <script type="text/javascript" 
            src="scripts/jquery.js">
    </script>
    <script type="text/javascript" 
            src="jqwidgets/jqxcore.js">
    </script>
    <script type="text/javascript" 
            src="jqwidgets/jqxdata.js">
    </script>
    <script type="text/javascript" 
            src="jqwidgets/jqxtagcloud.js">
    </script>
    <script type="text/javascript" 
            src="jqwidgets/jqx-all.js">
    </script>
</head>
  
<body>
    <center>
        <h1 style="color:green;">
            GeeksforGeeks
        </h1>
        <h3>
            jQWidgets jqxTagCloud insertAt() Method
        </h3>
        <div id="Tag_Cloud"></div>
        <input type="button" style="margin: 28px;" 
           id="button_for_insertAt"
           value="Insert new elements before 0th element"/>
        <div id="log"></div>
        <script type="text/javascript">
            
            (document).ready(function () {
                var Data_for_TagCloud = [
                    { Name: "GFG", Rating: 4 },
                    { Name: "is a", Rating: 3 },
                    { Name: "CS", Rating: 2 },
                    { Name: "Portal.", Rating: 5 },
                ];
                var dataAdapter = new
                    .jqx.dataAdapter({
                        localData: Data_for_TagCloud
                    });
                ('#Tag_Cloud').jqxTagCloud({
                    width: 450,
                    source: dataAdapter,
                    displayMember: 'Name',
                    valueMember: 'Rating'
                });
                ("#button_for_insertAt").
                    jqxButton({
                        width: 300
                    });
                ("#button_for_insertAt").jqxButton().
                    click(function () {
                        var Index = 0;
                        var New_Element = { Name: 'abc',
                                           Rating: 6 };
                        ('#Tag_Cloud').jqxTagCloud(
                            'insertAt', 
                            Index, New_Element);
                    });
            });
        </script>
    </center>
</body>
  
</html>

输出:

jQWidgets jqxTagCloud insertAt()方法

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