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When is the init() function run?

I've tried to find a precise explanation of what the init() function does in Go. I read what Effective Go says but I was unsure if I understood fully what it said. The exact sentence I am unsure is the following: ...
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Is there a constraint that restricts my generic method to numeric types?

Can anyone tell me if there is a way with generics to limit a generic type argument T to only: 21 Answers ...
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Do you put unit tests in same project or another project?

Do you put unit tests in the same project for convenience or do you put them in a separate assembly? 15 Answers ...
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Are Stored Procedures more efficient, in general, than inline statements on modern RDBMS's? [duplica

Conventional wisdom states that stored procedures are always faster. So, since they're always faster, use them ALL THE TIME . ...
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OAuth secrets in mobile apps

When using the OAuth protocol, you need a secret string obtained from the service you want to delegate to. If you are doing this in a web app, you can simply store the secret in your data base or on the file system, but what is the best way to handle it in a mobile app (or a desktop app for that mat...
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Covariance and contravariance real world example

I'm having a little trouble understanding how I would use covariance and contravariance in the real world. 9 Answers ...
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Is there any advantage of using map over unordered_map in case of trivial keys?

A recent talk about unordered_map in C++ made me realize that I should use unordered_map for most cases where I used map before, because of the efficiency of lookup ( amortized O(1) vs. O(log n) ). Most times I use a map, I use either int or std::string as the key type; hence, I've got...
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What is a monad?

Having briefly looked at Haskell recently, what would be a brief, succinct, practical explanation as to what a monad essentially is? ...
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How do I create a nice-looking DMG for Mac OS X using command-line tools?

I need to create a nice installer for a Mac application. I want it to be a disk image (DMG), with a predefined size, layout and background image. ...
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What is the best way to solve an Objective-C namespace collision?

Objective-C has no namespaces; it's much like C, everything is within one global namespace. Common practice is to prefix classes with initials, e.g. if you are working at IBM, you could prefix them with "IBM"; if you work for Microsoft, you could use "MS"; and so on. Sometimes the initials refer to ...