我可以确定javascript中使用了哪个“提交"按钮吗? [英] Can I determine which Submit button was used in javascript?

问题描述

我有一个非常简单的表单，其中包含一个名称字段和两个提交按钮:更改"和删除".提交表单时，我需要在JavaScript中进行一些表单验证，因此我需要知道单击了哪个按钮.如果用户按下回车键，则"change"值就是使它进入服务器的值.所以说真的，我只需要知道是否单击了删除"按钮即可.

I have a very simple form with a name field and two submit buttons: 'change' and 'delete'. I need to do some form validation in javascript when the form is submitted so I need to know which button was clicked. If the user hits the enter key, the 'change' value is the one that makes it to the server. So really, I just need to know if the 'delete' button was clicked or not.

我可以确定单击了哪个按钮吗?还是我需要将删除"按钮从提交按钮更改为常规按钮，并捕获其onclick事件以提交表单?

Can I determine which button was clicked? Or do I need to change the 'delete' button from a submit to a regular button and catch its onclick event to submit the form?

表单如下:

 <form action="update.php" method="post" onsubmit="return checkForm(this);">
    <input type="text" name="tagName" size="30" value="name goes here" />
    <input type="hidden" name="tagID" value="1" />
    <input type="submit" name="submit" value="Change" />
    <input type="submit" name="submit" value="Delete" />
 </form>

在 checkForm()函数中， form ["submit"] 是节点列表，而不是我可以获取其值的单个元素.

In the checkForm() function, form["submit"] is a node list, not a single element I can grab the value of.

推荐答案

您还可以通过多种不同方式使用 onclick 事件来解决该问题.

You could also use the onclick event in a number of different ways to address the problem.

例如:

<input type="submit" name="submit" value="Delete" 
       onclick="return TryingToDelete();" />

在JavaScript的 TryingToDelete()函数中，执行所需的操作，然后如果不想删除继续，请返回false .

In the TryingToDelete() function in JavaScript, do what you want, then return false if do not want the delete to proceed.

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