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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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How do I pass extra arguments to a Python decorator?
I have a decorator like below.
5 Answers
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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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map vs. hash_map in C++
...stion with hash_map and map in C++. I understand that map is in STL, but hash_map is not a standard. What's the difference between the two?
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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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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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