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What is 'Pattern Matching' in functional languages?
...ut functional programming and I've noticed that Pattern Matching is mentioned in many articles as one of the core features of functional languages.
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How to loop through a HashMap in JSP?
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Depending on what you want to accomplish within the loop, iterate over one of these instead:
countries.keySet()
countries.entrySet()
countries.values()
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Rails: How does the respond_to block work?
...mental than some of the answers I found here. This may or may not help someone.
respond_to is a method on the superclass ActionController.
it takes a block, which is like a delegate. The block is from do until end, with |format| as an argument to the block.
respond_to executes your block, passing ...
Why does C# forbid generic attribute types?
...rmation. Anyway, it's definitely a language decision rather than a runtime one.
EDIT: Answer from Eric Lippert (paraphrased): no particular reason, except to avoid complexity in both the language and compiler for a use case which doesn't add much value.
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When would you use the different git merge strategies?
...e is the default for non-fast-forward merges. We're all familiar with that one.
Octopus
I've used octopus when I've had several trees that needed to be merged. You see this in larger projects where many branches have had independent development and it's all ready to come together into a single he...
Bash if statement with multiple conditions throws an error
I'm trying to write a script that will check two error flags, and in case one flag (or both) are changed it'll echo-- error happened. My script:
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Using Git with Visual Studio [closed]
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Dani, someone is working on a Git source control provider for VS that seems to provide a slightly deeper level of integration: gitscc.codeplex.com
– Jon Rimmer
Jan 19 '11 at 10:54
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Getting “Lock wait timeout exceeded; try restarting transaction” even though I'm not using a transac
...ables where in_use>0;
3) Let's see the list of the current processes, one of them is locking your table(s)
mysql> show processlist;
4) Kill one of these processes
mysql> kill <put_process_id_here>;
shar...
TypeScript static classes
...nnot be subclassed and must contain only static methods. C# does not allow one to define functions outside of classes. In TypeScript this is possible, however.
If you're looking for a way to put your functions/methods in a namespace (i.e. not global), you could consider using TypeScript's modules, ...
Achieving bright, vivid colors for an iOS 7 translucent UINavigationBar
... replicate timeuser's example below but I'm still a little green with this one.
– Jeremy
Sep 24 '13 at 3:31
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