为什么jQuery会重启事件两次？ [英] Why does the jQuery resize event fire twice?
问题描述
我刚注意到，只要调整浏览器窗口的大小，jquery resize事件就会触发两次。我找不到任何将此列为默认行为的文档。我已经使用jQuery 1.4和1.5在最新版本的Chrome和Firefox中对此进行了测试。
I just noticed that the jquery resize event fires twice any time the browser window is resized. I'm unable to find any documentation listing this as the default behavior. I have tested this in the latest versions of Chrome and Firefox, using jQuery 1.4 and 1.5.
有没有其他人看到这种行为？是否有特定原因？
Does anyone else see this behavior? Is there a specific reason for it?
更新：如果我单击浏览器窗口上的最大化按钮一次，就会发生这种情况。我知道如果我手动将窗口拖动到不同的大小，事件将被多次触发，但最大化按钮不应该是这种情况。
Update: This happens if I click the maximize button on the browser window once. I understand that if I'm manually dragging the window to a different size, the event will be fired multiple times, but that shouldn't be the case with the maximize button.
使用的代码测试如下。浏览器调整大小的文本输出两次：
The code used test this is below. The browser resized text is output twice:
<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN"
"http://www.w3.org/TR/html4/loose.dtd">
<html>
<head>
<title></title>
</head>
<script src="//ajax.googleapis.com/ajax/libs/jquery/1.4/jquery.js"></script>
<script type="text/javascript">
$(window).resize(function(){
console.log('Browser Resized');
});
</script>
<body>
</body>
</html>
推荐答案
这不是jQuery的问题。这取决于浏览器的实现。浏览器决定何时触发'调整大小'。您可以使用window.onresize = function（）{...}进行测试。它会是一样的。与jQuery无关。我测试了Win7 chrome，它被激发了两次，而在Win7 opera / safari中，它被触发了一次。
This is not a problem of jQuery. It depends on the browser implementation. The browser decides when to trigger 'resize'. And you can use window.onresize = function() {...} to test. It will be same. Nothing to do with jQuery. I tested on Win7 chrome, it is fired twice, and in Win7 opera/safari it's fired once.
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