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Number of processors/cores in command line
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Make sure to nproc --all for all installed Processing Units. Without --all, nproc only shows Processing Units available to the current process. Read the man page for more details. MMV.
– JamesThomasMoon1979
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Ruby on Rails: Delete multiple hash keys
...re unaware of the Hash#except method ActiveSupport adds to Hash.
It would allow your code to be simplified to:
redirect_to my_path(params.except(:controller, :action, :other_key))
Also, you wouldn't have to monkey patch, since the Rails team did it for you!
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Eclipse executable launcher error: Unable to locate companion shared library
I had Eclipse Indigo installed on my computer with the Android plugin and it was working perfectly for about two weeks. Today, I updated java and quicktime then restarted my computer. When it booted back up, eclipse had completely vanished - all the program files have completely disappeared. When I ...
How do you trigger a block after a delay, like -performSelector:withObject:afterDelay:?
Is there a way to call a block with a primitive parameter after a delay, like using performSelector:withObject:afterDelay: but with an argument like int / double / float ?
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Can Selenium Webdriver open browser windows silently in background?
...um RC?
You can 'supposedly', pass in some parameters into Chrome, specifically: --no-startup-window
Note that for some browsers, especially IE, it will hurt your tests to not have it run in focus.
You can also hack about a bit with AutoIT, to hide the window once it's opened.
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Can I mix MySQL APIs in PHP?
...where. (Not sure whether plain old resources do that, but objects can actually take advantage of RAII to a not-insignificant degree.)
– cHao
Jul 5 '13 at 23:54
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Keyboard shortcuts in WPF
I know about using _ instead of & , but I'm looking at all the Ctrl + type shortcuts.
10 Answers
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Pick a random element from an array
... Int? Also, why doesn't Swift offer an Int alternative to this function or allow a user to specify what type of integer they would like returned?
– Austin A
Sep 27 '14 at 21:10
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Code Golf - π day
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Yeah, the ( operator alone allowed to shed 6 strokes!
– Dan Andreatta
Mar 18 '10 at 10:25
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What is the difference between varchar and varchar2 in Oracle?
...t rationale before, that's useful. Thanks. For the record, it is still totally ridiculous that the main character type in Oracle is "varchar2". Doesn't that strike anybody else as a terrible kludge? Seems like how I would have solved some problem in my first week of learning to program.
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