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SVN:externals equivalent in Git?
...ke the .gitignore file. See [git-scm.com/book/en/Git-Tools-Submodules] for more information.
– mikijov
May 30 '12 at 14:47
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Best implementation for hashCode method for a collection
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Ruby on Rails: Where to define global constants?
... is probably the best place, if your colours are really global and used in more than one model context.
# put this into config/initializers/my_constants.rb
COLOURS = ['white', 'blue'].freeze
Note: when we define constants above, often we want to freeze the array. That prevents other code from lat...
Is returning null bad design? [closed]
...value. You might want to check out the Null Object Pattern which provides more information on this.
For example, if I were to define a method in Java that returned a Collection I would typically prefer to return an empty collection (i.e. Collections.emptyList()) rather than null as it means my cli...
Git - Undo pushed commits
... and including the specified commits.
Look at the git-revert man page for more information about the git revert command. Also look at this answer for more information about reverting commits.
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Why is it bad practice to call System.gc()?
...from the other thread:
After reading the thread you linked, there's a few more things I'd like to point out.
First, someone suggested that calling gc() may return memory to the system. That's certainly not necessarily true - the Java heap itself grows independently of Java allocations.
As in, t...
“CAUTION: provisional headers are shown” in Chrome debugger
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How to get all groups that a user is a member of?
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How to use unicode characters in Windows command line?
... I use Unicode input/output in a console for years (and do it a lot daily. Moreover, I develop support tools for exactly this task). There are very few problems, as far as you understand the following facts/limitations:
CMD and “console” are unrelated factors. CMD.exe is a just one of program...
Returning value from called function in a shell script
... In the second example, rather than assigning from $?, it is more idiomatic to write "if testlock; then ..."
– William Pursell
Jan 5 '12 at 16:25
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