如何知道哪些＆LT;输入＆GT;当几个的是一个＆LT中定义的submited;形式GT ;?的是、几个、定义、形式
我要实现的下面简单的JavaScript函数 submitForm（）根据 XMLHtt prequest 和 FORMDATA 。这个功能可以很好的第一＆LT;形式GT; ，但未能在第二个：该函数应使用 input.formaction 。
I want to implement the below simple JavaScript function submitForm() based on XMLHttpRequest and FormData. This functions works well on the first <form> but fails on the second one: the function should use input.formaction instead of form.action.
如何检测pssed的$ P $ ＆LT;输入＆GT; 并获取相应的 formaction ？
How to detect the pressed <input> and retrieve the corresponding formaction?
（最让答案建议使用一个框架（如jQuery的），这样的处理，但我认为学习只是纯JavaScript比也在学习JS框架更容易。如果你确信这个片段可以用一个框架来写简单，请提出您的版本也请解释为什么你建议的框架是中肯/相关的/适合在这种情况下，我可能会决定去学习自己喜欢的JS框架... 编辑：我发现这个类似的问题： JQuery的GET formaction和formmethod ）
( Most of SO answers advise to use a framework (as jquery) for such processing. But I think learning solely pure JavaScript is easier than learning also JS frameworks. If you are convinced that this snippet can be written simpler using a framework, please propose your version. Please explain also why your advised framework is pertinent/relevant/suitable in this case. I may decide to learn your favorite JS framework... I have found this similar question: JQuery get formaction and formmethod )
<!DOCTYPE html>
<html>
<head>
<script>
function submitForm(form)
{
var xhr = new XMLHttpRequest();
xhr.onload = function() { alert (xhr.responseText); }
xhr.open ("post", form.action, true);
xhr.send (new FormData (form));
return false;
}
</script>
</head>
<body>
<form action="first.php" onsubmit="submitForm(this);">
<fieldset>
<legend>First</legend>
<input type="text" name="data" />
<input type="submit" />
</fieldset>
</form>
<form onsubmit="submitForm(this);">
<fieldset>
<legend>Second</legend>
<input type="text" name="data" />
<input type="submit" value="A" formaction="second-A.php" />
<input type="submit" value="B" formaction="second-B.php" />
</fieldset>
</form>
</body>
</html>
（我已阅读 XMLHtt prequest到的POST HTML表单，的
