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MySQL - SELECT WHERE field IN (subquery) - Extremely slow why?
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Subqueries vs joins
http://www.scribd.com/doc/2546837/New-Subquery-Optimizations-In-MySQL-6
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Are unused CSS images downloaded?
...ing example:
<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01//EN" "http://www.w3.org/TR/html4/strict.dtd">
<html>
<head>
<title>test</title>
<style type="text/css">
.unused {
background: url(unused.png) no-repeat;
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What is the difference between Strategy pattern and Dependency Injection?
...dependencies of objects change during their lifetimes, while this is not uncommon with Strategy.
Also, you can pass strategies as arguments to methods, while the related concept of method argument injection is not widespread and mostly used in the context of automated testing only.
Strategy focuse...
When to dispose CancellationTokenSource?
...l Dispose on the linked token source when you are done with it. For a more complete example, see How to: Listen for Multiple Cancellation Requests.
I used ContinueWith in my implementation.
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Are there strongly-typed collections in Objective-C?
... 'Lightweight Generics' to Objective-C. In Objective-C, they will generate compiler warnings if there is a type mismatch.
NSArray<NSString*>* arr = @[@"str"];
NSString* string = [arr objectAtIndex:0];
NSNumber* number = [arr objectAtIndex:0]; // Warning: Incompatible pointer types initializi...
How to create Windows EventLog source from command line?
...tom events.
Type eventcreate /? in CMD prompt
Microsoft TechNet: Windows Command-Line Reference: Eventcreate
SS64: Windows Command-Line Reference: Eventcreate
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Two versions of python on linux. how to make 2.7 the default
...g this is to install the python as an alternate version.
e.g.
wget http://www.python.org/ftp/python/2.7.3/Python-2.7.3.tar.bz2
tar xf Python-2.7.3.tar.bz2
cd Python-2.7.3
./configure --prefix=/usr/local/
make && make altinstall
Now by doing this the existing scripts like yum still work w...
Font Awesome not working, icons showing as squares
...added the MIME type on your web.config file as pointed here: stackoverflow.com/questions/4015816/…
– jpgrassi
Sep 10 '14 at 13:51
1
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Strip double quotes from a string in .NET
I'm trying to match on some inconsistently formatted HTML and need to strip out some double quotes.
12 Answers
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Linux C/C++进程单实例互斥代码分享 - C/C++ - 清泛网 - 专注C/C++及内核技术
Linux C/C++进程单实例互斥代码分享linux-process-singleton分享一段LinuxC C++程序只能启动一份实例的实现代码，原理是通过文件锁互斥实现，最重要的是考虑了不同用户运行同一程序互斥的场景，已经过充分的测试，可直接用于实际项...