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Can I convert a C# string value to an escaped string literal
... string literal, the way I would see it in code? I would like to replace tabs, newlines, etc. with their escape sequences.
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How to find list of possible words from a letter matrix [Boggle Solver]
Lately I have been playing a game on my iPhone called Scramble. Some of you may know this game as Boggle. Essentially, when the game starts you get a matrix of letters like so:
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How do you use window.postMessage across domains?
...eems like the point of window.postMessage is to allow safe communication between windows/frames hosted on different domains, but it doesn't actually seem to allow that in Chrome.
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Removing item from vector, while in C++11 range 'for' loop?
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No, you can't. Range-based for is for when you need to access each element of a container once.
You should use the normal for loop or one of its cousins if you need to modify the container as you go along, access an element more than once, or ot...
Spring: Why do we autowire the interface and not the implemented class?
...mplementation is annotated with @Component with Spring's component scan enabled, Spring framework can find out the (interface, implementation) pair. If component scan is not enabled, then you have to define the bean explicitly in your application-config.xml (or equivalent spring configuration file)....
scp or sftp copy multiple files with single command
...emote to local:
$ scp your_username@remote.edu:/some/remote/directory/\{a,b,c\} ./
Copy multiple files from local to remote:
$ scp foo.txt bar.txt your_username@remotehost.edu:~
$ scp {foo,bar}.txt your_username@remotehost.edu:~
$ scp *.txt your_username@remotehost.edu:~
Copy multiple files fr...
Cost of exception handlers in Python
...ted replacing a (very cheap) if statement in Python code with a try/except block to improve performance.
3 Answers
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How to combine two strings together in PHP?
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$result = $data1 . $data2;
This is called string concatenation. Your example lacks a space though, so for that specifically, you would need:
$result = $data1 . ' ' . $data2;
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How do I move a redis database from one server to another?
...hat instance as my new redis server. If it were MySQL, I would export the DB from the old server and import it into the new server. How should I do this with redis?
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How can I make grep print the lines below and above each matching line? [duplicate]
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grep's -A 1 option will give you one line after; -B 1 will give you one line before; and -C 1 combines both to give you one line both before and after, -1 does the same.
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