迭代相同的表单元素 [英] Iterating through same form elements

问题描述

如果表单重复使用相同的标签。

If a form has same tag repeatedly.

如何在javascript中获取其值。

How to get its value in javascript.

    <script>
     function validate()
      {
        //get all values of elmone
      }
     </script>


<form>
<input type="text" size="15" value="Hello World" name="elmOne">
<input type="text" size="15" value="next Hello World" name="elmOne">
 <input type="button" onclick="javascript:validate()" value="validate">
</form> 

谢谢..

推荐答案

将两个不同的文本输入元素命名为通用名称并不常见。但是，回到问题，你总是可以使用document.getElementByName（'elmOne'）;获取匹配输入的列表，然后遍历它以获取值

it is not a common practice to name two different text input element with a common name. However, back to the question, you can always use document.getElementByName('elmOne'); to get a list of the matching input, then loop through it for value

var input_list = document.getElementsByName('elmOne');

for(var i = 0; i < input_list.length; i++) {
    // either way should get you the value
    console.debug(input_list[i].value, input_list[i].getAttribute('value'));
}

你可能想参考这个页面了解有关兼容性的更多信息

you may want to refer to this page for further information on compatibility

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