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Big-O for Eight Year Olds? [duplicate]

I'm asking more about what this means to my code. I understand the concepts mathematically, I just have a hard time wrapping my head around what they mean conceptually. For example, if one were to perform an O(1) operation on a data structure, I understand that the number of operations it has to p...
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nginx error connect to php5-fpm.sock failed (13: Permission denied)

I update nginx to 1.4.7 and php to 5.5.12 , After that I got the 502 error . Before I update everything works fine. 24 ...
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How to check Django version

I have to use Python and Django for our application. So I have two versions of Python, 2.6 and 2.7. Now I have installed Django. I could run the sample application for testing Django succesfuly. But how do I make sure whether Django uses the 2.6 or 2.7 version and what version of modules Django ...
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What's the difference between the build and create methods in FactoryGirl?

...Girl introduction delineates the difference between FactoryGirl.build() and FactoryGirl.create() : 3 Answers ...
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Complex nesting of partials and templates

...e... I use nested directive controls. This allows you to set up templating and inherit (or isolate) scopes among them. Outside of that I use ng-switch or even just ng-show to choose which controls I'm displaying based on what's coming in from $routeParams. EDIT Here's some example pseudo-code to gi...
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How do I tidy up an HTML file's indentation in VI?

...page into a html file. Open with VIM, type "set smartindent", then "gg=G" and it doesn't fix the indenting of the file. – mmcdole May 2 '09 at 20:40 16 ...
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TCP loopback connection vs Unix Domain Socket performance

Working on an Android and iOS based application which require communication with a server running in the same device. Currently using TCP loopback connection for communicating with App and Server (App written in user layer, server written in C++ using Android NDK) ...
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What are the true benefits of ExpandoObject?

The ExpandoObject class being added to .NET 4 allows you to arbitrarily set properties onto an object at runtime. 10 Answ...
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Does IE9 support console.log, and is it a real function?

... In Internet Explorer 9 (and 8), the console object is only exposed when the developer tools are opened for a particular tab. If you hide the developer tools window for that tab, the console object remains exposed for each page you navigate to. If ...
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pydot and graphviz error: Couldn't import dot_parser, loading of dot files will not be possible

....1: The incompatibility of (upstream) pydot has been fixed by 6dff94b3f1, and thus pydot >= 1.1 will be compatible with pyparsing >= 1.5.7. Answer applicable to pydot <= 1.0.28: For anyone else who comes across this, it is due to the changes in pyparsing from 1.x to the 2.x release. To...