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Rails Observer Alternatives for 4.0
With Observers officially removed from Rails 4.0 , I'm curious what other developers are using in their place. (Other than using the extracted gem.) While Observers were certainly abused and could easily become unwieldily at times, there were many use-cases outside of just cache-clearing where they...
Combining two lists and removing duplicates, without removing duplicates in original list
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RichieHindleRichieHindle
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Benefits of using the conditional ?: (ternary) operator
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– Nathan Ernst
Jul 22 '10 at 22:41
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Not part of the OP's question, but important to note is ...
MVC 5 Seed Users and Roles
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edited Nov 1 '15 at 4:38
Shimmy Weitzhandler
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Installing SciPy and NumPy using pip
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I am assuming Linux experience in my answer; I found that there are three prerequisites to getti...
Is there a way to create a function from a string with javascript?
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I added a jsperf test for 4 different ways to create a function from string :
Using RegExp wi...
Disable Auto Zoom in Input “Text” tag - Safari on iPhone
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Windows x64编程中寄存器的使用 - C/C++ - 清泛网 - 专注C/C++及内核技术
Windows x64编程中寄存器的使用下面是摘自 MSDN 的文章，在Win64下的 registers 用途RegisterStatusUseRAXVolatileReturn value registerRCXVolatileFirst integer 下面是摘自 MSDN 的文章，在 Win64 下的 registers 用途
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Hidden features of Perl?
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The flip-flop operator is useful for skipping the first iteration when loopin...
Android中Java和JavaScript交互 - 更多技术 - 清泛网 - 专注C/C++及内核技术
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webView.loadUrl(call);
调用js有参数有返回值的函数
Android在4.4之前并没有提供直接调用js函数并获取值的方法，所以在此之前，常用的思路是 java调用js方法，js方法执行完毕，再次调用java代码将值返回。
String call = "javascript：aler...