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Will using 'var' affect performance?

...performs to save keystrokes, so for example var s = "hi"; gets replaced by string s = "hi"; by the compiler before any IL is generated. The Generated IL will be exactly the same as if you'd typed string. share ...
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Determining the size of an Android view at runtime

...ore the view is actually laid out on the screen? A common mistake made by new Android developers is to use the width and height of a view inside its constructor. When a view’s constructor is called, Android doesn’t know yet how big the view will be, so the sizes are set to zero. The...
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Is std::vector so much slower than plain arrays?

...e than the array. IMO this difference is insignificant and could be caused by a whole bunch of things not associated with the test. I would also take into account that you are not correctly initializing/Destroying the Pixel object in the UseArrray() method as neither constructor/destructor is not c...
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Error during installing HAXM, VT-X not working

... thank you. I'm using FW vaio laptop with win 10. Every things works fine by enabling this option at BIOS. – Ali Mofrad Mar 7 '16 at 22:34 ...
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Detect if Android device has Internet connection

...id security they donot allow plain text communication now. for now just to by pass it. android:usesCleartextTraffic="true" share | improve this answer | follow ...
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Skip callbacks on Factory Girl and Rspec

... None of these solutions are good. They deface the class by removing functionality that should be removed from the instance, not from the class. factory :user do before(:create){|user| user.define_singleton_method(:send_welcome_email){}} Instead of suppressing the callback, I ...
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How to create a checkbox with a clickable label?

...at breaks the grid system and mobile responsiveness will be harder to come by – Max Nov 6 '14 at 7:59 ...
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CSS background image to fit width, height should auto-scale in proportion

... cover Sorry for the bad pun, but I'm going to use the picture of the day by Biswarup Ganguly for demonstration. Lets say that this is your screen, and the gray area is outside of your visible screen. For demonstration, I'm going to assume a 16x9 ratio. We want to use the aforementioned picture ...
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Javascript infamous Loop issue? [duplicate]

...hen CLICKING on div each value of div is set? it's saves on function scope by reference all the time – Dima Dec 10 '13 at 12:21 1 ...
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How to check if a process id (PID) exists

... This has the problem that if the process is not owned by the running user, you may not have permissions to call kill -0. Better to use ps -p $PID > /dev/null 2>&1, which allows you to see process status, even if you do not have permissions to send a signal. ...