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Using unset vs. setting a variable to empty

... 143 Mostly you don't see a difference, unless you are using set -u: /home/user1> var="" /home/...
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12306.cn谈谈网站性能技术12306.cn网站挂了,被全国人民骂了。我这两天也在思考这个事,我想以这个事来粗略地和大家讨论一下网站性能的问题。因为仓促,而且完全基于...12306.cn网站挂了,被全国人民骂了。我这两天也在思考...
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What is default session timeout in ASP.NET?

... 107 It is 20 Minutes according to MSDN From MSDN: Optional TimeSpan attribute. Specifies the numb...
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Go: panic: runtime error: invalid memory address or nil pointer dereference

... 121 According to the docs for func (*Client) Do: "An error is returned if caused by client policy...
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Need to reset git branch to origin version

...e you mention in your question) Note that just after the reset, mybranch@{1} refers to the old commit, before reset. But if you had already pushed, see "Create git branch, and revert original to upstream state" for other options. With Git 2.23 (August 2019), that would be one command: git switc...
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How to read all files in a folder from Java?

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How to configure 'git log' to show 'commit date'

... 151 There are several options to pretty print the date. Probably the easiest is to just use one of...
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How to get the Full file path from URI

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Python xml ElementTree from a string source?

... 91 If you're using xml.etree.ElementTree.parse to parse from a file, then you can use xml.etree.Ele...
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Detect if a page has a vertical scrollbar?

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