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Build vs new in Rails 3

In the Rails 3 docs , the build method for associations is described as being the same as the new method, but with the automatic assignment of the foreign key. Straight from the docs: ...
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Rails has_and_belongs_to_many migration

I have two models restaurant and user that I want to perform a has_and_belongs_to_many relationship. 4 Answers ...
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API Keys vs HTTP Authentication vs OAuth in a RESTful API

I'm working on building a RESTful API for one of the applications I maintain. We're currently looking to build various things into it that require more controlled access and security. While researching how to go about securing the API, I found a few different opinions on what form to use. I've seen ...
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Why is GHC so large/big?

Is there a simple answer: Why is GHC so big? 6 Answers 6 ...
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JavaScript function order: why does it matter?

JSHint complains when my JavaScript calls a function that is defined further down the page than the call to it. However, my page is for a game, and no functions are called until the whole thing has downloaded. So why does the order functions appear in my code matter? ...
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git --git-dir not working as expected

I am trying to run git from a different directory than I am in. So for example if I am in: 4 Answers ...
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How to deal with IntelliJ IDEA project files under Git source control constantly changing?

Everyone on our team uses IntelliJ IDEA, and we find it useful to put its project files (.ipr and .iml) into source control so that we can share build configurations, settings, and inspections. Plus, we can then use those inspection settings on our continuous integration server with TeamCity. (We ha...
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Which, if any, C++ compilers do tail-recursion optimization?

It seems to me that it would work perfectly well to do tail-recursion optimization in both C and C++, yet while debugging I never seem to see a frame stack that indicates this optimization. That is kind of good, because the stack tells me how deep the recursion is. However, the optimization would be...
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Compare double to zero using epsilon

Today, I was looking through some C++ code (written by somebody else) and found this section: 11 Answers ...
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How to get a complete list of object's methods and attributes?

does not return pattern as one of the lists's elements. Namely it returns: 5 Answers 5...