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Unique ways to use the Null Coalescing operator [closed]
I know the standard way of using the Null coalescing operator in C# is to set default values.
16 Answers
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Checking if a variable is an integer
Does Rails 3 or Ruby have a built-in way to check if a variable is an integer?
11 Answers
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Remote origin already exists on 'git push' to a new repository
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You are getting this error because "origin" is not available. "origin" is a convention not part of the command. "origin" is the local name of the remote repository.
For example you could also write:
git remote add myorigin git@github.c...
MVC 4 @Scripts “does not exist”
...and used Visual Studio 2012 RC to create a Controller and Razor Views for Index and Create Actions.
24 Answers
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How would you implement an LRU cache in Java?
...tc. Assume for purposes of this question that I want to implement my own using just the SDK (learning by doing). Given that the cache will be used in a multithreaded environment, which datastructures would you use? I've already implemented one using LinkedHashMap and Collections#synchronizedMap ,...
Parse error: Syntax error, unexpected end of file in my PHP code
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In case it helps anybody: I got a similar error, but caused by <? } ?> instead of <?php } ?>.
– Adam Libuša
Nov 7 '13 at 13:06
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What is the best testing framework to use with Node.js? [closed]
I have looked at the rather long list of testing frameworks at https://github.com/ry/node/wiki/modules#testing . What is the experience with these frameworks?
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server certificate verification failed. CAfile: /etc/ssl/certs/ca-certificates.crt CRLfile: none
I can push by clone project using ssh, but it doesn't work when I clone project with https.
17 Answers
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How do you sort an array on multiple columns?
... @user26409021 - No, that's not right. It would end up being [[A, 5], [A, 10], [J, 5], [J, 15]]. It sorts by the first attribute first, and if those are the same, then it sorts by the second attribute. So in your example, A would come before J. In the case where A is the same fo...
Applying a function to every row of a table using dplyr?
When working with plyr I often found it useful to use adply for scalar functions that I have to apply to each and every row.
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