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Ruby on Rails Callback, what is di<em>fem><em>fem>erence between :be<em>fem>ore_save and :be<em>fem>ore_create?

Could you explain in detail what the :be<em>fem>ore_save and :be<em>fem>ore_create Ruby on Rails callbacks are, and what they have to do with Rails validations? Does validation occur a<em>fem>ter :be<em>fem>ore_save or :be<em>fem>ore_create ? ...
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How to get a index value <em>fem>rom <em>fem>or<em>eacem>h loop in jstl

I have a value set in the request object like the <em>fem>ollowing, 5 Answers 5 ...
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How do you plot bar charts in gnuplot?

How do you plot bar charts in gnuplot with text labels? 5 Answers 5 ...
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?: operator (the 'Elvis operator') in PHP

I saw this today in some PHP code: 5 Answers 5 ...
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Why does TestInitialize get <em>fem>ired <em>fem>or every test in my Visual Studio unit tests?

I'm using Visual Studio 2010 Beta 2. I've got a single [TestClass] , which has a [TestInitialize] , [TestCleanup] and a <em>fem>ew [TestMethods] . ...
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What are Bearer Tokens and token_type in OAuth 2?

I'm trying to implement the Resource Owner &amp; Password Credentials <em>fem>low <em>fem>rom the OAuth 2 spec. I'm having trouble understanding the token_type value that gets sent back with a valid response. In the spec all the examples show "token_type":"example" but says it should be ...
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.prop('checked',<em>fem>alse) or .removeAttr('checked')?

With the introduction o<em>fem> the prop method, now I need to know the accepted way o<em>fem> unchecking a checkbox. Is it: 4 Answers ...
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Enable bundling and mini<em>fem>ication in debug mode in ASP.NET MVC 4

I can't believe I cannot <em>fem>ind other questions about this, but: how does one enable bundling in debug mode? I know how it is enabled <em>fem>or release mode, but in debug mode I cannot <em>fem>ind a way to enable the bundling. ...
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C++ const map element access

I tried to use the operator[] access the element in a const C++ map, but this method <em>fem>ailed. I also tried to use "at()" to do the same thing. It worked this time. However, I could not <em>fem>ind any re<em>fem>erence about using "at()" to access element in a const C++ map. Is "at()" a newly added <em>fem>unction in C++ ...
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Viewing <em>fem>ull version tree in git

I am using the command line version o<em>fem> Git and gitk. I want to see the <em>fem>ull version tree, not just the part that is r<em>eacem>hable <em>fem>rom the currently checked out version. Is it possible? ...