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How to detect idle time in JavaScript elegantly?

Is it possible to detect " idle " time in JavaScript? My primary use case probably would be to pre-fetch or preload content. ...
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What are the sizes used for the iOS application splash screen?

...s popular. I've written a blog post based on Apple's doco and placed it on my blog. I hope you guys find it useful. Yes. In iPhone/iPad development the Default.png file is displayed by the device automatically so you don't have to program it which is really useful. I don't have it with me, but you n...
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What is the best way to solve an Objective-C namespace collision?

...nload it and load the other one when you need to use the other framework. My initial idea was to use NSBundle to load one of the frameworks, then copy or rename the classes inside that framework, and then load the other framework. There are two problems with this. First, I couldn't find a function ...
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What's the fastest way to convert String to Number in JavaScript?

...iable before +1 is not a parsing error. It is a trick similar to using if (MYCONSTANT == myvar) in C. – Tomas Nov 6 '13 at 14:22 5 ...
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Is there a way to instantiate objects from a string holding their class name?

... How do you ensure that DerivedB::reg is actually initialized? My understanding is that it may not be constructed at all if no function or object defined in the translation unit derivedb.cpp, as per 3.6.2. – musiphil Dec 8 '12 at 5:28 ...
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Is there a way to reduce the size of the git folder?

Seems like my project is getting bigger and bigger with every git commit/push . Is there a way to clean up my git folder? ...
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How can I build a small operating system on an old desktop computer? [closed]

... Andrew Tanenbaum's books on operating systems. This is the one we used in my OS class in college: Modern Operating Systems PDF Modern Operating Systems on Amazon Despite the ridiculous cover, it's a fantastic read, especially for a textbook. Tanenbaum is really an expert in this area and his...
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How do I set a variable to the output of a command in Bash?

...pulating variables about disk usage) First simple, old, and compatible way myPi=`echo '4*a(1)' | bc -l` echo $myPi 3.14159265358979323844 Mostly compatible, second way As nesting could become heavy, parenthesis was implemented for this myPi=$(bc -l <<<'4*a(1)') Nested sample: SysStarted=...
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Android: Expand/collapse animation

... I see that this question became popular so I post my actual solution. The main advantage is that you don't have to know the expanded height to apply the animation and once the view is expanded, it adapts height if content changes. It works great for me. public static void e...
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What is the difference between require() and library()?

.... Does it mean that if I load the packages I need at the very beginning of my R-code it does not matter which one I choose? – Marco Apr 8 '11 at 13:20 7 ...