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When should I use mmap for file access?
...re's the standard system calls open() , read() , write() , and friends, but there's also the option of using mmap() to map the file into virtual memory.
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How does the Amazon Recommendation feature work?
What technology goes in behind the screens of Amazon recommendation technology? I believe that Amazon recommendation is currently the best in the market, but how do they provide us with such relevant recommendations?
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Citrix服务器虚拟化：XenApp 6.5发布服务器上的应用程序 - 更多技术 - 清泛...
...地桌面。
2) 内容：发布非可执行文件信息，如媒体、Web 页面或文档。选择了此应用程序类型后，必须为要发布的文件指定 URL（统一资源定位器）或 UNC（通用命名约定）路径。
单击浏览可查看网络中的可用内容资源。
3) 应...
In vim, how do I go back to where I was before a search?
Programming in vim I often go search for something, yank it, then go back to where I was, insert it, modify it.
7 Answers
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How to run a single test from a rails test suite?
...st, use the following command from your rails project's main directory:
ruby -I test test/unit/my_model_test.rb -n test_name
This runs a single test named "name", defined in the MyModelTest class in the specified file. The test_name is formed by taking the test name, prepending it with the word ...
How can I make space between two buttons in same div?
What is the best way to horizontally space Bootstrap buttons?
12 Answers
12
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What does “=>” mean in PHP?
...ve's pass is: apassword"
// "steve's pass is: secr3t"
Note that this can be used for numerically indexed arrays too.
Example:
$foo = array('car', 'truck', 'van', 'bike', 'rickshaw');
foreach ($foo as $i => $type) {
echo "{$i}: {$type}\n";
}
// prints:
// 0: car
// 1: truck
// 2: van
// 3:...
jQuery Validate Required Select
...select element using jQuery Validate plugin. I set "required" rule to true but it always passes validation because zero index is chosed by default. Is there any way to define empty value that is used by required rule?
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In java how to get substring from a string till a character c?
I have a string (which is basically a file name following a naming convention) abc.def.ghi
9 Answers
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Replace comma with newline in sed on MacOS?
...Prince John WesleyPrince John Wesley
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