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Ruby: Easiest Way to Filter Hash Keys?
...with just the choices in it.
choices = params.select { |key, value| key.to_s.match(/^choice\d+/) }
or you can use delete_if and modify the existing Hash e.g.
params.delete_if { |key, value| !key.to_s.match(/choice\d+/) }
or if it is just the keys and not the values you want then you can do:
p...
What is the difference between log4net and ELMAH?
...,error) with log4net but store it in ELMAH nuget.org/packages/elmahappender_log4net_1.2.10
– Sturla
Feb 18 '14 at 16:21
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What is the python “with” statement designed for?
... need with.
– detly
Jun 10 '10 at 8:32
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diveintopython.org is down (permanently?). Mirrored at d...
Getting time elapsed in Objective-C
...er to use Apple's function CACurrentMediaTime!
I also benchmarked the mach_timebase_info call and it takes approximately 19ns on my iPhone 6, so I removed the (not threadsafe) code which was caching the output of that call.
#include <mach/mach.h>
#include <mach/mach_time.h>
uint64_t g...
fatal error: malformed or corrupted AST file - Xcode
... Thanks man, this worked. But can you please explain what is all this about_ I like to know why something happens, when it does. And I just had this error when I opened my project the next day, out of the blue.
– SteBra
Jul 23 '14 at 8:27
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How do I replace a git submodule with another repo?
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answered May 6 '15 at 17:32
hobberwickeyhobberwickey
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Trying to add adb to PATH variable OSX
.../bin:/bin:/usr/sbin:/sbin:/usr/local/bin:/usr/X11/bin:/Libs/android-sdk-mac_x86/tools:/Libs/android-sdk-mac_x86/platform-tools
You're missing the /Users/simon part.
Also note that if you have both .profile and .bash_profile files, only the latter gets executed.
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What's the difference between deadlock and livelock?
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All the content and examples here are from
Operating Systems: Internals and Design Principles
William Stallings
8º Edition
Deadlock: A situation in which two or more processes are unable to proceed because each is waiting ...
Take a screenshot of a webpage with JavaScript?
...o PrintScreen. Here's the code for that:
Declare Sub keybd_event Lib "user32" _
(ByVal bVk As Byte, ByVal bScan As Byte, ByVal dwFlags As Long, ByVal dwExtraInfo As Long)
Public Const CaptWindow = 2
Public Sub ScreenGrab()
keybd_event &H12, 0, 0, 0
keybd_event &H2C, CaptWindow, 0, 0...
Case insensitive replace
...ld be useful if the to-replace value was passed into a function, so it's really more of a good example than anything else.
– Blair Conrad
Nov 9 '14 at 23:19
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