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Is there any way to git checkout previous branch?
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wow, I totally should have just tried it! figured - was a shell-ism, and that if the functionality was in git, it would be something different
– Matt Briggs
Aug 26 '11 at 16:17
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How can I add to List
...t<? extends T> because you can't guarantee what kind of List it is really pointing to, so you can't guarantee that the object is allowed in that List. The only "guarantee" is that you can only read from it and you'll get a T or subclass of T.
The reverse logic applies to super, e.g. List<?...
C# Object Pooling Pattern implementation
...ctPool type, which is used to pool frequently used objects which would normally get new'ed up and garbage collected very often. This reduces the amount and size of garbage collection operations which have to happen. There are a few different sub-implementations all using ObjectPool (See: Why are the...
In Python, how do I indicate I'm overriding a method?
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Based on this and fwc:s answer I created a pip installable package https://github.com/mkorpela/overrides
From time to time I end up here looking at this question.
Mainly this happens after (again) seeing the same bug in our code base: Someone has forgotten some "interface" i...
How can you zip or unzip from the script using ONLY Windows' built-in capabilities?
....IO.Compression.FileSystem'; [IO.Compression.ZipFile]::ExtractToDirectory('foo.zip', 'bar'); }"
As Ivan Shilo said, this won't work with PowerShell 2, it requires PowerShell 3 or greater and .NET Framework 4.
share
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How does RewriteBase work in .htaccess
... want to clear up some details on htaccess.. does a ReWriteBase set it for all rules in the htaccess following what its declaration? is there a way to unset it, can it be reset?
– Damon
Apr 25 '13 at 15:32
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Strangest language feature
What is, in your opinion, the most surprising, weird, strange or really "WTF" language feature you have encountered?
320 An...
How does !!~ (not not tilde/bang bang tilde) alter the result of a 'contains/included' Array method
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The tilde operator isn't actually part of jQuery at all - it's a bitwise NOT operator in JavaScript itself.
See The Great Mystery of the Tilde(~).
You are getting strange numbers in your experiments because you are performing a bitwise logical operatio...
What is global::?
...ss System
{
}
}
If you were to use System where it would be locally scoped in the foo class, you could use:
global::System.Console.WriteLine("foobar");
to access the global namespace.
Example
using System;
class Foo
{
public void baz()
{
Console.WriteLine("Foo 1");
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在MongoDB中模拟Auto Increment - 大数据 & AI - 清泛网 - 专注C/C++及内核技术
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return $option['init'];
}
var_dump(generate_auto_increment_id('foo'));
var_dump(generate_auto_increment_id('bar', array('init' => 123)));
?>
其具体实现方式主要是利用MongoDB中findAndModify命令，只要每次往MongoDB里insert对象前生成ID赋值给_id就OK了，因...