jQuery UI Button instance()方法

jQuery UI按钮实例方法用于获取按钮的实例对象。

语法:

var a = $( ".selector" ).button( "instance" )

参数：该方法不接受任何参数。

返回值：该方法返回一个对象值。

方法：首先，添加你的项目所需的jQuery UI脚本。

<script src=”https://ajax.googleapis.com/ajax/libs/jquery/1.7.1/jquery.js”> </script>
<script src=”https://ajax.googleapis.com/ajax/libs/jqueryui/1.8.16/jquery-ui.js”></script>
<link href=”http://ajax.googleapis.com/ajax/libs/jqueryui/1.8.16/themes/ui-lightness/jquery-ui.css” rel=”stylesheet” type=”text/css” />

示例:

<!DOCTYPE html> 
<html> 
  
<head> 
    <meta charset="utf-8"> 
    <meta name="viewport" content= 
        "width=device-width, initial-scale=1"> 
  
    <script src= 
"https://ajax.googleapis.com/ajax/libs/jquery/1.7.1/jquery.js"> 
    </script> 
  
    <script src= 
"https://ajax.googleapis.com/ajax/libs/jqueryui/1.8.16/jquery-ui.js"> 
    </script> 
  
    <link href= 
"http://ajax.googleapis.com/ajax/libs/jqueryui/1.8.16/themes/ui-lightness/jquery-ui.css"
        rel="stylesheet" type="text/css" /> 
          
    <style> 
        .height { 
            height: 10px; 
        } 
    </style> 
  
    <script> 
         $(function () {$ ("#buttonId, #submitId").button();
  
             $('#buttonId, #submitId').click(function (event) { event.preventDefault(); var a =$ ( this ).button("instance" );
                console.log(a) 
            });  
        }); 
    </script> 
</head> 
  
<body> 
    <h1 style="color:green">GeeksforGeeks</h1> 
  
    <b>jQueryUI | Button instance Method</b> 
  
    <div class="height"> </div><br> 
  
    <div class="buttons-div"> 
        <button id="buttonId">Button element</button> 
        <input id="submitId" type="submit" 
            value="Submit button">  
    </div>
</body> 
  
</html>

输出:

jQuery UI Button instance()方法