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Merge two (or more) lists into one, in C# .NET

... You can use the LINQ Concat and ToList methods: var allProducts = productCollection1.Concat(productCollection2) .Concat(productCollection3) .ToList(); Note that there are more efficient ways to do this -...
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Get a specific bit from byte

I have a byte, specifically one byte from a byte array which came in via UDP sent from another device. This byte stores the on/off state of 8 relays in the device. ...
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Rails - How to use a Helper Inside a Controller

... use these methods. Also, including the helper into the controller exposes all the helper's methods as publicly accessible actions which is not good. view_context is the way to go in Rails 3. – GregT Sep 12 '13 at 3:48 ...
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Memcached vs APC which one should I choose? [closed]

... want to get the best caching engine available so that my application is really fast. Of course I don't want to over-cache but I want to at least choose the best thing out there. In that article it says Memcached is slow and apc is fast so why is everyone choosing memcached ? ...
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htaccess Access-Control-Allow-Origin

I'm creating a script that loads externally on other sites. It loads CSS and HTML and works fine on my own servers. 9 Answe...
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Add Keypair to existing EC2 instance

...asier to start a new EC2 instance and throw away the bad one, but if you really want to fix your files, here is the approach that has worked for many: Setup Identify the original instance (A) and volume that contains the broken root EBS volume with the files you want to view and edit. instance_a=...
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Override devise registrations controller

... If you override a Devise controller like this, make sure you copy all views from app/views/devise/registrations to app/views/registrations/ (change for whichever controller you're overriding). – Jamie Cobbett Mar 21 '11 at 17:29 ...
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Recommended Fonts for Programming? [closed]

... you use for programming, and for what language/IDE? I use Consolas for all my Visual Studio work, any other recommendations? ...
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What is the difference between service, directive and module?

...been reading a lot of docs, and I'm getting more and more confused. I basically can't figure out the difference between a ...
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“unrecognized import path” with go get

I'm trying to install a web.go , but running go get github.com/hoisie/web returns 9 Answers ...