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How to use background thread in swift?

...syntax without some modifications. Passing QOS_CLASS_BACKGROUND didn't actually work, instead use Int(QOS_CLASS_BACKGROUND.value). For more information see Apples documentation share | improve thi...
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Cross compile Go on OSX?

... The env command runs only that call in a custom environment and 'resets' it after it is done. For example run export GOOS=windows, then the command with or without the env and echo $GOOS afterwards. With the env the GOOS was not changed. ...
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Minimum and maximum value of z-index?

...t to 0 and is not a negative number. Note that many properties that allow an integer or real number as a value actually restrict the value to some range, often to a non-negative value. So basically there are no limitations for z-index value in the CSS standard, but I guess most browse...
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AngularJS: Is there any way to determine which fields are making a form invalid?

...lowing code in an AngularJS application, inside of a controller, which is called from an ng-submit function, which belongs to a form with name profileForm : ...
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Set Matplotlib colorbar size to match graph

...Has a lot of trouble interacting with subplot_adjust, you have to get the calls in just the right places relative to each other. – Elliot Aug 12 '13 at 22:16 11 ...
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Real-world examples of recursion [closed]

...l, and fixes itself quickly( Type A) , Except for one in 5 people ( We'll call these type B ) who become permanently infected with it and shows no symptoms and merely acts a spreader. This creates quite annoying waves of havoc when ever type B infects a multitude of type A. Your task is to track ...
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Google Sheets API Setup · App Inventor 2 中文网

... Note: If you are only going to read from the Google Sheets document, and not edit or write data to the document, you can skip the process of making a Service Account. The only requirement is that the Google Sheets document is shared such that anyone with the link can read the document. Create...
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Stack, Static, and Heap in C++

...t understood very well these three concepts. When do I have to use dynamic allocation (in the heap) and what's its real advantage? What are the problems of static and stack? Could I write an entire application without allocating variables in the heap? ...
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Base 64 encode and decode example code

Does anyone know how to decode and encode a string in Base64 using the Base64. I am using the following code, but it's not working. ...
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How to hide UINavigationBar 1px bottom line

...navigationBar?.scrollEdgeAppearance = navigationBarAppearence For iOS 12 and below: To do this, you should set a custom shadow image. But for the shadow image to be shown you also need to set a custom background image, quote from Apple's documentation: For a custom shadow image to be shown, a...