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Reference assignment operator in PHP, =&
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It's not deprecated and is unlikely to be. It's the standard way to, for example, make part of one array or object mirror changes made to another, instead of copying the existing data.
It's called assignment by reference, which, to quote the manual, "means that b...
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...
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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How does a Breadth-First Search work when looking for Shortest Path?
I've done some research, and I seem to be missing one small part of this algorithm. I understand how a Breadth-First Search works, but I don't understand how exactly it will get me to a specific path, as opposed to just telling me where each individual node can go. I guess the easiest way to explain...
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...
How to terminate a window in tmux?
...e a window in tmux? Like the Ctrl a k shortcut in screen with Ctrl a being the prefix.
10 Answers
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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 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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Delete column from SQLite table
I have a problem: I need to delete a column from my SQLite database. I wrote this query
10 Answers
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