Prototype - 表單序列化方法

此方法用於將表單資料序列化為適合 Ajax 請求（預設行為）的字串，或者如果可選引數 getHash 評估為 true，則序列化為一個物件雜湊，其中鍵是表單控制元件名稱，值是資料。

根據可選引數 getHash 是否評估為 true，結果將是 {name: "johnny", color: "blue"} 形式的物件或 "name = johnny&color = blue" 形式的字串，適合 Ajax 請求中的引數。

語法

formElement.serialize([getHash = false]);

返回值

它返回一個 String 物件。

下面是兩個關於它的工作原理的提示。請詳細檢視下面的示例。

$('example').serialize()
// 'username = sulien&age = 22&hobbies = coding&hobbies = hiking'
$('example').serialize(true)
// {username: 'sulien', age: '22', hobbies: ['coding', 'hiking']}

示例

<html>
   <head>
      <title>Prototype examples</title>
      <script type = "text/javascript" src = "/javascript/prototype.js"></script>
      
      <script>
         function showResult() {
            var form = $('example'); 
            var element = form.serialize(); 
            alert("form.serialize() : " + element.inspect());
         }
      </script>
   </head>

   <body>
      <p>Click the button to see the result.</p>
      <br />

      <form id = "example" action = "#" onsubmit = "return false">
         <fieldset>
            <legend>User info</legend>
            <div>
               <label for = "username">Username:</label> 
               <input name = "username" id = "username" value = "Sulien" type = "text">
            </div>
            <div>
               <label for = "age">Age:</label> 
               <input name = "age" id = "age" value = "23" size = "3" type = "text">
            </div>
            <div>
               <label for = "hobbies">Your hobbies are:</label>
               <select name = "hobbies" id = "hobbies" multiple = "multiple">
                  <option>coding</option>
                  <option>swimming</option>
                  <option>hiking</option>
                  <option>drawing</option>
               </select>
            </div>
         </fieldset>
      </form>
      <br />
      
      <input type = "button" value = "Result" onclick = "showResult();"/>
   </body>
</html>

輸出

prototype_form_management.htm

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