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How should I choose an authentication library for CodeIgniter? [closed]
... wiki, Redux has been discontinued, but the Ion Auth fork is going strong: https://github.com/benedmunds/CodeIgniter-Ion-Auth
Ion Auth is a well featured library without it being overly heavy or under advanced. In most cases its feature set will more than cater for a project's requirements.
Pros
L...
What is a ViewModelLocator and what are its pros/cons compared to DataTemplates?
...
Refer to:
How to handle dependency injection in a WPF/MVVM application
http://blog.qmatteoq.com/the-mvvm-pattern-dependency-injection/
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Watermark / hint text / placeholder TextBox
...tbox in WPF:
<Window x:Class="WaterMarkTextBoxDemo.Window1"
xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"
xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
xmlns:local="clr-namespace:WaterMarkTextBoxDemo"
Height="200" Width="400">
<Window.Resou...
What is data oriented design?
...imagine the same thing applies to databases (disk reads) and even the Web (HTTP requests). It's a useful way of doing systems programming, I think.
Note that it doesn't absolve you from thinking about algorithms and time complexity, it just focuses your attention at figuring out the most expensive ...
How does RegexOptions.Compiled work?
...
var simple = "^\\d+$";
var medium = @"^((to|from)\W)?(?<url>http://[\w\.:]+)/questions/(?<questionId>\d+)(/(\w|-)*)?(/(?<answerId>\d+))?";
var complex = @"^(([^<>()[\]\\.,;:\s@""]+"
+ @"(\.[^<>()[\]\\.,;:\s@""]+)*)|("".+""))@"
+ @"((\[[0-9]{1,3}...
What is DOM Event delegation?
... // Now do something here....
}
}
}
}
});
http://davidwalsh.name/event-delegate
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what exactly is device pixel ratio?
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Here is a tool that also tells you your current device's pixel density:
http://bjango.com/articles/min-device-pixel-ratio/
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What is the difference between Google App Engine and Google Compute Engine?
...es of code that execute in response to different events, which may include HTTP requests, changes in Cloud Storage, etc.
The biggest difference with App Engine is that functions are priced per 100 milliseconds, while App Engine's instances shut down only after 15 minutes of inactivity. Another adva...
What are Vertex Array Objects?
I am just starting to learn OpenGL today from this tutorial: http://openglbook.com/the-book/
I got to chapter 2, where I draw a triangle, and I understand everything except VAOs (is this acronym OK?). The tutorial has this code:
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Using HTML5/Canvas/JavaScript to take in-browser screenshots
...wser supported).
For more information, have a look at the examples here:
http://hertzen.com/experiments/jsfeedback/
edit
The html2canvas script is now available separately here and some examples here.
edit 2
Another confirmation that Google uses a very similar method (in fact, based on the docum...