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Difference between Build Solution, Rebuild Solution, and Clean Solution in Visual Studio?
What is the difference between Build Solution, Rebuild Solution, and Clean Solution in Visual Studio?
12 Answers
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Entity Framework: There is already an open DataReader associated with this Command
I am using Entity Framework and occasionally i will get this error.
17 Answers
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Resetting remote to a certain commit
I want to discard all changes done after commit <commit-hash> .
So I did:
9 Answers
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How to generate a random string of a fixed length in Go?
...m /dev/urandom) and is geared towards cryptographic random generation. see http://golang.org/pkg/crypto/rand/#example_Read . It might be slower than normal pseudo-random number generation though.
Take a random number and hash it using md5 or something like this.
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E11000 duplicate key error index in mongodb mongoose
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How do you trigger a block after a delay, like -performSelector:withObject:afterDelay:?
Is there a way to call a block with a primitive parameter after a delay, like using performSelector:withObject:afterDelay: but with an argument like int / double / float ?
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Difference between EXISTS and IN in SQL?
What is the difference between the EXISTS and IN clause in SQL?
21 Answers
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How to read data when some numbers contain commas as thousand separator?
I have a csv file where some of the numerical values are expressed as strings with commas as thousand separator, e.g. "1,513" instead of 1513 . What is the simplest way to read the data into R?
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Picking a random element from a set
How do I pick a random element from a set?
I'm particularly interested in picking a random element from a
HashSet or a LinkedHashSet, in Java.
Solutions for other languages are also welcome.
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What must I know to use GNU Screen properly? [closed]
I've just introduced a friend to GNU Screen and they're having a hard time getting used to it. That makes me think about the essential things he needs to know about the excellent Screen utility, the same things that you'd think worthwhile to teach someone, a beginner, from the ground up. What ar...