jQuery :enabled用法及代碼示例

：enabled選擇器用於選擇所有啟用的表單元素。

用法:

$(":enabled")

參數：

:enabled選擇器它用於選擇支持禁用屬性的HTML元素。即按鈕標簽，輸入標簽，optgroup標簽，選項標簽，選擇標簽和textarea標簽。

示例1：

<!DOCTYPE html> 
<html> 
  
<head> 
    <title>:enabled Selector</title> 
    <script src= 
"https://ajax.googleapis.com/ajax/libs/jquery/3.3.1/jquery.min.js"> 
  </script> 
    
    <script> 
        $(document).ready(function() { 
         $(":enabled").css("background-color", 
                              "green"); 
        }); 
    </script> 
</head> 
  
<body> 
    <center> 
        <form action="#"> 
            <h1>Welcome to GeeksforGeeks!.</h1> 
            <div> 
                Text:
                <input type="text"
                       name="text"
                       value="GeeksforGeeks"> 
                <br/> 
                <input type="submit" 
                       name="submit" 
                       value="submit"> 
            </div> 
  
        </form> 
    </center> 
  
</body> 
  
</html>

輸出：

示例2：

<!DOCTYPE html> 
<html> 
  
<head> 
    <title>:enabled Selector</title> 
    <script src= 
"https://ajax.googleapis.com/ajax/libs/jquery/3.3.1/jquery.min.js"> 
  </script> 
    
    <script> 
        $(document).ready(function() { 
            $(":enabled").css("background-color", 
                              "green"); 
        }); 
    </script> 
</head> 
  
<body> 
    <center> 
        <form action="#"> 
            <h1>Welcome to GeeksforGeeks!.</h1> 
            <div> 
                Select:
                <select> 
                    <option>1</option> 
                    <option>2</option> 
                    <option>3</option> 
                    <option>4</option> 
                </select> 
            </div> 
  
        </form> 
    </center> 
  
</body> 
  
</html>

輸出

相關用法

注：本文由純淨天空篩選整理自AdeshSingh1大神的英文原創作品 jQuery | :enabled Selector。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。