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Ruby, !! operator (a/k/a the double-bang) [duplicate]
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In most programming languages, including Ruby, ! will return the opposite of the boolean value of the operand. So when you chain two exclamation marks together, it converts the value to a boolean.
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Get DateTime.Now with milliseconds precision
How can I exactly construct a time stamp of actual time with milliseconds precision?
11 Answers
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What is cardinality in MySQL?
What is cardinality in MySQL? Please explain in simple, non-technical language.
8 Answers
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How to reset AUTO_INCREMENT in MySQL?
How can I reset the AUTO_INCREMENT of a field?
I want it to start counting from 1 again.
24 Answers
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How to get memory available or used in C#
How can I get the available RAM or memory used by the application?
6 Answers
6
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Removing multiple files from a Git repo that have already been deleted from disk
I have a Git repo that I have deleted four files from using rm ( not git rm ), and my Git status looks like this:
29 An...
IOS: create a UIImage or UIImageView with rounded corners
Is it possible create an UIImage or an UIImageView with rounded corners? Because I want take an UIImage and show it inside an UIImageView , but I don't know how to do it.
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How to “grep” for a filename instead of the contents of a file?
grep is used to search within a file to see if any line matches a given regular expression. However, I have this situation - I want to write a regular expression that will match the filename itself (and not the contents of the file). I will run this from the system's root directory, to find all thos...
Viewing contents of a .jar file
What would be the easiest way to view classes, methods, properties, etc. inside a jar file?
I'm looking for something equivalent to the very useful Lutz Roeder .NET Reflector - for Java
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Disable a group of tests in rspec?
...3 you can:
before { skip }
# or
xdescribe
# or
xcontext
You can add a message with skip that will show up in the output:
before { skip("Awaiting a fix in the gem") }
with RSpec 2:
before { pending }
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