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How to disable a link using only CSS?
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Also, this doesnt avoid tabbing to the link then enter.
– Jono
Dec 22 '13 at 9:26
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How to empty a Heroku database
I'm working on a Ruby on Rails 3 webapp on Heroku. How do I empty the database?
18 Answers
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How do I “git blame” a deleted line?
... remove an instance of that string. There's also the -G<regex> which does the same thing with regular expressions! See man git-log and search for the -G and -S options, or pickaxe (the friendly name for these features) for more information.
The -S option is actually mentioned in the header of...
How to make an array of arrays in Java
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Could you explain further what the second syntax does? It's kind of unclear to me.
– Terence Ponce
Jan 24 '11 at 11:04
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What is this weird colon-member (“ : ”) syntax in the constructor?
... initialize all member objects in the member initialization list (however, do note the exceptions listed at the end of the FAQ entry).
The takeaway point from the FAQ entry is that,
All other things being equal, your code will run faster if you use initialization lists rather than assignment....
How can I split up a Git commit buried in history?
I flubbed up my history and want to do some changes to it. Problem is, I have a commit with two unrelated changes, and this commit is surrounded by some other changes in my local (non-pushed) history.
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List of installed gems?
...uire 'rubygems'
def local_gems
Gem::Specification.sort_by{ |g| [g.name.downcase, g.version] }.group_by{ |g| g.name }
end
Because local_gems relies on group_by, it returns a hash of the gems, where the key is the gem's name, and the value is an array of the gem specifications. The value is an a...
Delete all files in directory (but not directory) - one liner solution
... This will also recursively deletes all sub-folders and files under them.
Docs: org.apache.commons.io.FileUtils.cleanDirectory
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How to implement WiX installer upgrade?
...grade element instead of using your own.
For example, we use this code to do automatic upgrades. It prevents downgrades, giving a localised error message, and also prevents upgrading an already existing identical version (i.e. only lower versions are upgraded):
<MajorUpgrade
AllowDowngrades...
How do the major C# DI/IoC frameworks compare? [closed]
...also due to it's use of new language features.)
– ocodo
Jan 5 '11 at 23:08
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