javascript event.srcElement.value 在 jQuery 中等效
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event.srcElement.value equivalent in jQuery
提问by Arian
I've got a function that is written in javascript
and I want to rewrite that in jQuery
This is the function code:
我有一个写入的函数,javascript
我想重写它,jQuery
这是函数代码:
function onclickRbtn(controlID , Message)
{
var s = document.getElementById(controlID);
var sVal = event.srcElement.value;
for (var i = 0; i < s.rows.length; i++)
{
if (s.getElementsByTagName("input")[i].value == sVal)
s.getElementsByTagName("label")[i].innerText = Message;
}
s.disabled = 'disabled';
}
What is this code :event.srcElement.value` and what is equivalent in jQuery?
这段代码是什么:event.srcElement.value` 和 jQuery 中的等价物是什么?
Thanks
谢谢
回答by rahul
You can use event.target
您可以使用event.target
To find out which element is the target of the event you can use
要找出哪个元素是您可以使用的事件的目标
*http://www.quirksmode.org/js/events_properties.html#target*
*http://www.quirksmode.org/js/events_properties.html#target*
回答by Preben Huybrechts
You mean this:
你是这个意思:
$("button").click(function(){
var value = $(this).val();
});
回答by Niet the Dark Absol
If you have working JavaScript code, DO NOT rewrite it in jQuery. That's like saying "this hammer can push nails into a wall, but I want to use a sledgehammer instead."
如果你有可用的 JavaScript 代码,不要用 jQuery 重写它。这就像说“这把锤子可以把钉子钉在墙上,但我想用大锤代替。”
That aside, the code you have is exclusive to IE 8 and below, it won't work in IE 9 or other browsers, because it uses specific terms (global event
object, srcElement
...)
除此之外,您拥有的代码仅适用于 IE 8 及更低版本,它不适用于 IE 9 或其他浏览器,因为它使用特定术语(全局event
对象,srcElement
...)
Here's the code you should use:
这是您应该使用的代码:
function onclickRbtn(controlID,Message,evt) {
evt = evt || window.event;
var s = document.getElementById(controlID),
sVal = (evt.srcElement || evt.target).value,
inputs = s.getElementsByTagName('input'),
labels = s.getElementsByTagName('label');
for( var i=0; i<s.rows.length; i++) {
if( inputs[i].value == sVal) labels[i].innerText = labels[i].textContent = Message;
}
s.disabled = true;
}
And wherever you attach the event, make sure you add the event to the arguments. Examples:
无论您在何处附加事件,请确保将事件添加到参数中。例子:
<element onclick="onclickRbtn(controlID, Message, event);">
elem.onclick = function(e) {onclickRbtn(controlID, Message, e);};
回答by Zymotik
This works in IE9, IE 8, IE7, Chrome 22, Safari 5.7.1. It does not work in FF 14:
这适用于 IE9、IE 8、IE7、Chrome 22、Safari 5.7.1。它在 FF 14 中不起作用:
$(event.srcElement || event.target);