Prototype - Form getInputs() 方法

此方法返回表单中所有 INPUT 元素的集合。使用可选的 type 和 name 参数来限制对这些属性的搜索。

输入元素按文档顺序返回，而不是按 tabindex 顺序返回。

语法

formElement.getInputs([type [, name]]);

返回值

它返回 HTMLFormElement 数组。

form.getInputs() // -> 所有 INPUT 元素
form.getInputs('text') // -> 仅文本输入

var buttons = form.getInputs('radio', 'education')
// -> 仅名称为"education"的单选按钮

示例

<html>
   <head>
      <title>Prototype examples</title>
      <script type = "text/javascript" src = "/javascript/prototype.js"></script>
      
      <script>
         function showResult() {
            var form = $('example'); 
            var arr = form.getInputs(); 
            arr.each(function(item) {
               alert("Return Element 1 : " + item.inspect());
            });
         }
      </script>
   </head>

   <body>
      <p>单击按钮查看结果。</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>

输出

prototype_form_management.html