如何通过 JavaScript 设置表单操作? [英] How can I set the form action through JavaScript?
本文介绍了如何通过 JavaScript 设置表单操作?的处理方法,对大家解决问题具有一定的参考价值,需要的朋友们下面随着小编来一起学习吧!
问题描述
我有一个 HTML 表单,它的操作应该通过 JavaScript 动态设置.我该怎么做?
I have an HTML form whose action should be set dynamically through JavaScript. How do I do it?
这是我想要实现的目标:
Here is what I am trying to achieve:
<script type="text/javascript">
function get_action() { // Inside script tags
return form_action;
}
</script>
<form action=get_action()>
...
</form>
推荐答案
除了 onXXX
之外,您不能在标准 HTML 属性中调用 JavaScript 函数.只需在窗口加载期间分配它.
You cannot invoke JavaScript functions in standard HTML attributes other than onXXX
. Just assign it during window onload.
<script type="text/javascript">
window.onload = function() {
document.myform.action = get_action();
}
function get_action() {
return form_action;
}
</script>
<form name="myform">
...
</form>
你看到我给了表单一个 name
,这样它就可以在 document
中轻松访问.
You see that I've given the form a name
, so that it's easily accessible in document
.
或者,您也可以在 submit
事件期间进行:
Alternatively, you can also do it during submit
event:
<script type="text/javascript">
function get_action(form) {
form.action = form_action;
}
</script>
<form onsubmit="get_action(this);">
...
</form>
这篇关于如何通过 JavaScript 设置表单操作?的文章就介绍到这了,希望我们推荐的答案对大家有所帮助,也希望大家多多支持IT屋!
查看全文