jQWidgets jqxTagCloud updateAt()用法及代碼示例

jQWidgets 是一個 JavaScript 框架，用於為 PC 和移動設備製作基於 Web 的應用程序。它是一個非常強大、優化、獨立於平台且得到廣泛支持的框架。 jqxTagCloud 用於顯示一組用戶生成的標簽，這些標簽與網站上的文章、帖子或視頻相關。

updateAt() 方法用於更新具有指定jqxTagCloud的特定索引的元素。

用法:

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

參數：此方法接受兩個參數，如下所示：

index:這是其元素正在用新元素更新的索引。
tagItem:這是新元素。

返回值：該方法不返回任何值。

鏈接文件：下載jQWidgets從給定的鏈接。在 HTML 文件中，找到下載文件夾中的腳本文件。

<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：下麵的例子說明了 jQWidgetsupdateAt()方法。在下麵的示例中，索引為 0 的元素正在被更新。

HTML


<!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 updateAt() Method 
        </h3> 
        <div id="Tag_Cloud"></div> 
        <input type="button" style="margin: 28px;" 
               id="button_for_updateAt"
          value="Update the 0th index with new 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_updateAt"). 
                    jqxButton({ 
                        width: 300 
                    }); 
                $("#button_for_updateAt").jqxButton(). 
                    click(function () { 
                        var Index = 0; 
                        var New_Element = { 
                            Name: 'abc', 
                            Rating: 6 
                        }; 
                        $('#Tag_Cloud').jqxTagCloud( 
                            'updateAt', 
                            Index, New_Element); 
                    }); 
            }); 
        </script> 
    </center> 
</body> 
  
</html>

輸出：

參考： https://www.jqwidgets.com/jquery-widgets-documentation/documentation/jqxtagcloud/jquery-tagcloud-api.htm?search=

相關用法

注：本文由純淨天空篩選整理自Kanchan_Ray大神的英文原創作品 jQWidgets jqxTagCloud updateAt() Method。非經特殊聲明，原始代碼版權歸原作者所有，本譯文未經允許或授權，請勿轉載或複製。