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Detect browser or tab closing
..."\o/";
(e || window.event).returnValue = confirmationMessage; //Gecko + IE
return confirmationMessage; //Webkit, Safari, Chrome
});
This example for handling all browsers.
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How many concurrent AJAX (XmlHttpRequest) requests are allowed in popular browsers?
...requests, each domain is what will be limited to the concurrent maximum.
IE6, IE7 - have a limit of two. IE8 is 6 if you have a broadband - 2 (if it's a dial up).
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windows异常处理 __try __except - C/C++ - 清泛网 - 专注C/C++及内核技术
...是windows核心编程。不过还是建议你看英文原版，翻译的版本质量不高。
异常处理 __try __except
PDB文件：每个开发人员都必须知道的 - 更多技术 - 清泛网 - 专注C/C++及内核技术
...PDB文件中的。对于public builds，在运行source indexing tool后，版本控制工具将代码存储到你设置的代码cache中。对于private builds，只是存储了PDB文件的全路径，例如在c:\foo下的源文件mycode.cpp，在pdb文件中存储的路径为c:\foo\mycode.cpp。...
boost::filesystem指南 - C/C++ - 清泛网 - 专注C/C++及内核技术
...的时候可以关闭这个功能。同时有两个函数提供了无异常版本，这是因为在任务不能完成时并非是异常。
filesystem库的所有内容定义在boost名字空间的一个下级名字空间里，它叫boost::filesytem。在使用boost.filesytem之后，链接时需要...
.keyCode vs. .which
...gical key) and code (for the physical placement of the key). But note that IE doesn't support code, and its support for key is based on an older version of the spec so isn't quite correct. As I write this, the current Edge based on EdgeHTML and Chakra doesn't support code either, but Microsoft is ro...
How can I remove the outline around hyperlinks images?
...at had been bugging me for a long time -- not just the hyperlinked pics in IE, but regular pics w/ no hyperlink. It was annoying until I found your answer (via Google, not Stack, oddly enough).
– Jason Weber
Jan 16 '12 at 8:01
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Set size on background image with CSS?
...ari 4.1+ (webkit 532) and Chrome 3.0+.
.stretch{
/* Will stretch to specified width/height */
background-size: 200px 150px;
}
.stretch-content{
/* Will stretch to width/height of element */
background-size: 100% 100%;
}
.resize-width{
/* width: 150px, height: auto to retain aspect ratio */
b...
Browser detection in JavaScript? [duplicate]
... navigator.userAgent, tem,
M= ua.match(/(opera|chrome|safari|firefox|msie|trident(?=\/))\/?\s*(\d+)/i) || [];
if(/trident/i.test(M[1])){
tem= /\brv[ :]+(\d+)/g.exec(ua) || [];
return 'IE '+(tem[1] || '');
}
if(M[1]=== 'Chrome'){
tem= ua.match(/\b(OPR|Edge?)\/...
How do I give text or an image a transparent background using CSS?
...orts RGBA also supports HSLA, which is a far more intuitive color mapping. IE8 is the only pseudosignificant browser that fails to support it, so barring that go ahead and use HSL(A) for every colour.
– iono
Nov 28 '13 at 8:17
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