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Specifying column name in a “references” migration

...ou want indexes (which are a great idea - despite the fact that rails will completely ignore them), than you can certainly add them. You will want to check out the guide I link for more info on migrations in general, and you may even end up putting calling SQL code directly in your migration. I woul...
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Resharper Alt Enter not working

...xe as Administrator cd C:\Program Files (x86)\Microsoft Visual Studio 12.0\Common7\IDE\ devenv.exe /ResetSettings Re-apply Visual Studio keyboard scheme: (VS2013 latest ReSharper) ReSharper > Options > Environment > Keyboard & Menus > ReSharper Platform keyboard scheme: Visual Stu...
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What is the “-->” operator in C++?

After reading Hidden Features and Dark Corners of C++/STL on comp.lang.c++.moderated , I was completely surprised that the following snippet compiled and worked in both Visual Studio 2008 and G++ 4.4. ...
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How to set a value to a file input in HTML?

...the file name is remembered each time I revisit. Pelase see stackoverflow.com/questions/41807471/… – Mawg says reinstate Monica Jan 23 '17 at 13:25 1 ...
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How can I convert a Unix timestamp to DateTime and vice versa?

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How can I output leading zeros in Ruby?

I'm outputting a set of numbered files from a Ruby script. The numbers come from incrementing a counter, but to make them sort nicely in the directory, I'd like to use leading zeros in the filenames. In other words ...
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iOS - Dismiss keyboard when touching outside of UITextField

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Creating an empty file in C#

...ill release the resources as well. Close() just calls Dispose - see github.com/dotnet/coreclr/blob/master/src/mscorlib/src/System/… – Jon Skeet Mar 7 '16 at 14:27 ...
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Look up all descendants of a class in Ruby

...ingleton_class instead of Class make it much faster (see source at apidock.com/rails/Class/descendants) – brauliobo May 9 '15 at 0:41 21 ...
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Appending the same string to a list of strings in Python

... it to every string contained in a list, and then have a new list with the completed strings. Example: 11 Answers ...