Prototype - undoPositioned() 方法

此方法會將元素放回它在應用 Element.makePositioned 之前所處的狀態。

語法

element.undoPositioned();

返回值

返回 HTML 元素。

示例

<html>
   <head>
      <title>Prototype examples</title>
      <script type = "text/javascript" src = "/javascript/prototype.js"></script>
      
      <script>
         function Positioned() {
            $('container').makePositioned();
         }
         function UnPositioned() {
            $('container').undoPositioned();
         }
      </script>
   </head>

   <body>
      <p>Click the buttons to see the result.</p>
      <br />
      
      <div id = "container">
         <div id = "element" 
            style = "position:absolute; top: 60px; left: 20px; border:1px solid red;">
            This is Element Box
         </div>
      </div>
      <br />
      
      <input type = "button" value = "Postioned" onclick = "Positioned();"/>
      <input type = "button" value = "UnPositioned" onclick = "UnPositioned();"/>
   </body>
</html>

輸出

prototype_element_object.htm

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