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How to get the previous URL in JavaScript?
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You sir have saved me from a world of JavaScript pain!
– Anna Lam
Sep 20 '12 at 5:03
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How do I resolve the “java.net.BindException: Address already in use: JVM_Bind” error?
...s you have another process bound to the same port.
TCPView (Windows only) from Windows Sysinternals is my favorite app whenever I have a JVM_BIND error. It shows which processes are listening on which port. It also provides a convenient context menu to either kill the process or close the connec...
How to print a string in fixed width?
...lly posted as an edit to @0x90's answer, but it got rejected for deviating from the post's original intent and recommended to post as a comment or answer, so I'm including the short write-up here.
In addition to the answer from @0x90, the syntax can be made more flexible, by using a variable for th...
How do I terminate a thread in C++11?
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You could call std::terminate() from any thread and the thread you're referring to will forcefully end.
You could arrange for ~thread() to be executed on the object of the target thread, without a intervening join() nor detach() on that object. This will h...
Change the image source on rollover using jQuery
...this on IMAGE elements :) Besides that, CSS mean the separation of content from presentation. If you do this, you join those things ;) You can't have this for a large site, right?
– Ionuț Staicu
Feb 12 '09 at 7:56
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Automatically import modules when entering the python or ipython interpreter
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Use the environment variable PYTHONSTARTUP. From the official documentation:
If this is the name of a readable file, the Python commands in that
file are executed before the first prompt is displayed in interactive
mode. The file is executed in the same namespa...
Why are primes important in cryptography?
... info on the latest work, I believe that was back in 2012, this article is from 2014 (m.phys.org/news/2014-11-largest-factored-quantum-device.html) Have we seen any public data from 2016? Not to exclude what might be classified. Although it can't run Shors Algorithm, D-Wave is now over 1000 qbits
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How do I push a local Git branch to master branch in the remote?
...mentioned in the comments you probably don't want to do that...
The answer from mipadi is absolutely correct if you know what you're doing.
I would say:
git checkout master
git pull # to update the state to the latest remote master state
git merge develop # to bring changes to l...
How to make a node.js application run permanently?
On a Debian server, I installed Node.js. I understand how to launch an app from putty with this command line:
19 Answers
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Standardize data columns in R
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@weber85, it is a "pipe" operator (from functional programming). Instead of writing f(g(x)) it would look nicer if one writes x %>% g %>% f. In other words, dat %>% mutate_each_(funs(scale),vars=c("y","z")) is just mutate_each_(dat,funs(scale),vars=c(...