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Fastest hash for non-cryptographic uses?
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CRC32 is pretty fast and there's a function for it: http://www.php.net/manual/en/function.crc32.php
But you should be aware that CRC32 will have more collisions than MD5 or even SHA-1 hashes, simply because of the reduced length (32 bits compared to 128 bits respectively 160 bits). But if y...
Equation (expression) parser with precedence?
...lified version for the shunting-yard algorithm can be found here: andreinc.net/2010/10/05/… (with implementations in Java and python)
– Andrei Ciobanu
Oct 6 '10 at 6:53
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Using async/await for multiple tasks
...s code blocks each thread that each operation runs on. For example, if the network call takes 2 seconds, each thread hangs for 2 seconds w/o doing anything but waiting.
int[] ids = new[] { 1, 2, 3, 4, 5 };
Task.WaitAll(ids.Select(i => DoSomething(1, i, blogClient)).ToArray());
On the other han...
AngularJS : The correct way of binding to a service properties
...ice updates itself.
The code below can be seen working at http://jsfiddle.net/xuUHS/163/
View:
<div ng-controller="ServiceCtrl">
<p> This is my countService variable : {{count}}</p>
<input type="number" ng-model="count">
<p> This is my updated after clic...
Why does pthread_cond_wait have spurious wakeups?
...w.awl.com/cseng/titles/0-201-63392-2/ |
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Resumable downloads when using PHP to send the file?
...uffering right. It does the chunking automatically, if you tell it to: php.net/manual/en/… e.g. output_buffering=4096 (and if your framework doesn't allow this, you framework sucks)
– ZJR
Oct 14 '15 at 17:00
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Creating a singleton in Python
...rence/datamodel.html. A good reference on metaclasses is eli.thegreenplace.net/2011/08/14/python-metaclasses-by-example. A good article on singletons is the series from the google blog I linked in this answer.
– agf
Sep 20 '11 at 6:28
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Android应用开发性能优化完全分析 - 更多技术 - 清泛网 - 专注C/C++及内核技术
...手解决那些必须的就可以了。
【工匠若水 http://blog.csdn.net/yanbober 转载请注明出处。点我开始Android技术交流】
3 应用开发Memory内存性能分析优化
说完了应用开发中的UI性能问题后我们就该来关注应用开发中的另一个重要、严重...
How to upload files to server using JSP/Servlet?
... or copypaste some homegrown library-less code found elsewhere on the Internet. Many online sources have failed hard in this, such as roseindia.net. See also uploading of pdf file. You should rather use a real library which is used (and implicitly tested!) by millions of users for years. Such a libr...
How can I prevent SQL injection in PHP?
...e are a lot of systems under PHP 5.5.0 and that may use this function. php.net/manual/en/function.mysql-query.php
– Randall Valenciano
Jan 19 '16 at 17:40
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