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How expensive is the lock statement?
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Lock-free isn't "potentially faster". It can be orders of magnitudes faster in extremely tight, long-running, concurrent loops.
– antikbd
Aug 26 at 0:30
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Can someone explain how to implement the jQuery File Upload plugin?
...this gem. The source is here --> jQueryFileUpload Rails.
Update:
In order to satisfy the commenter I've updated my answer. Essentially "use this gem, here is the source code" If it disappears then do it the long way.
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Where to define custom error types in Ruby and/or Rails?
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I think in order to have cohesive source files in your project, you should define errors in the class in which may throw them and nowhere else.
Some heirarchy can be helpful - namespaces are good at keeping redundant strings out of typ...
setBackground vs setBackgroundDrawable (Android)
...nt) accepts resource id, therefore it has to inflate the view each time in order to set the background. I do not want such behaviour, assuming I already have inflated Drawable. Am I missing something?
– azizbekian
Dec 1 '15 at 12:30
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What are sessions? How do they work?
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Because HTTP is stateless, in order to associate a request to any other request, you need a way to store user data between HTTP requests.
Cookies or URL parameters ( for ex. like http://example.com/myPage?asd=lol&boo=no ) are both suitable ways to ...
What's a simple way to get a text input popup dialog box on an iPhone
...Color:[UIColor whiteColor]];
textField.delegate = self;
textField.borderStyle = UITextBorderStyleLine;
textField.frame = CGRectMake(15, 75, 255, 30);
textField.placeholder = @"Preset Name";
textField.keyboardAppearance = UIKeyboardAppearanceAlert;
[textField becomeFirstRespon...
Where to put model data and behaviour? [tl; dr; Use Services]
...special class, or use special methods (like ko.observable, in knockout) in order to work with models in angular, a pure js object will be enough".
– Felipe Castro
Jun 4 '13 at 23:50
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How do I make a reference to a figure in markdown using pandoc?
... I'd like to do something similar with referring to an element of an ordered list
– DanielTuzes
Mar 17 '15 at 9:48
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Adding custom radio buttons in android
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In order to hide the default radio button, I'd suggest to remove the button instead of making it transparent as all visual feedback is handled by the drawable background :
android:button="@null"
Also it would be better to use...
Arduino Sketch upload issue - avrdude: stk500_recv(): programmer is not responding
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FYI - I had to install the latest FTDI drivers in order to resolve this issue permanently
– Scott Silvi
Jun 22 '14 at 17:50
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