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Rails 3 migrations: Adding reference column?
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mrzmyr
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answered May 3 '13 at 8:43
Paulo FidalgoPaulo Fidalgo
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UnmodifiableMap (Java Collections) vs ImmutableMap (Google) [duplicate]
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An unmodifiable map may still change. It is only a view on a modifiable map, and changes in the backing map will be visible through the unmodifiable map. The unmodifiable map only prevents modifications for those who only have the refere...
How to generate javadoc comments in Android Studio
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I can't find any shortcut to generate javadoc comments. But if you type /** before the method declaration and press Enter, the javadoc comment block will be generated automatically.
Read this for more information.
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How do I extract text that lies between parentheses (round brackets)?
I have a string User name (sales) and I want to extract the text between the brackets, how would I do this?
16 Answers
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GOTO still considered harmful? [closed]
...ered harmful (also here .html transcript and here .pdf) and there has been a formidable push since that time to eschew the goto statement whenever possible. While it's possible to use goto to produce unmaintainable, sprawling code, it nevertheless remains in modern programming languages . Even...
Git: See my last commit
...t you'd get from svn status or svn log -v, which many people coming from subversion to git are familiar with.
--name-status is the key here; as noted by other folks in this question, you can use git log -1, git show, and git diff to get the same sort of output. Personally, I tend to use git show &l...
How do you find the current user in a Windows environment?
When running a command-line script, is it possible to get the name of the current user?
13 Answers
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Get the key corresponding to the minimum value within a dictionary
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Best: min(d, key=d.get) -- no reason to interpose a useless lambda indirection layer or extract items or keys!
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Something like 'contains any' for Java set?
I have two sets, A and B, of the same type.
9 Answers
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How do I pass extra arguments to a Python decorator?
I have a decorator like below.
5 Answers
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