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Shall we always use [unowned self] inside closure in Swift

...t to use [unowned self]. Sometimes you want the closure to capture self in order to make sure that it is still around by the time the closure is called. Example: Making an asynchronous network request If you are making an asynchronous network request you do want the closure to retain self for when...
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Using GPU from a docker container?

...he date. These 2 numbers are called major and minor numbers (wrote in that order) and design a device. We will just use the major numbers for convenience. Why do we activated lxc driver? To use the lxc conf option that allow us to permit our container to access those devices. The option is : (i rec...
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How to grey out a button?

... So in order to grey it out, I must change the color of the background AND the color of the text in the disable state? There is no way to just add a transparent foreground? – jul Jan 5 '12 at 1...
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A worthy developer-friendly alternative to PayPal [closed]

...ange from PayPal because I think they are expensive and it doesn't work in all countries. Furthermore, I think that the API is sufficient, but could be better. The API documentation, however, is total utter crap . ...
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django order_by query set, ascending and descending

How can I order by descending my query set in django by date? 11 Answers 11 ...
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When should I use C++14 automatic return type deduction?

...guage I've ever used). I think auto was a giant mistake and it will cause orders of magnitude more pain than help. Others will say you should use it all the time, as it fits their philosophy of programming. At any rate, this is way out of scope for this site. ...
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Tool to track #include dependencies [closed]

...e name of a header file and output should be a list (preferably a tree) of all files including it directly or indirectly. 1...
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Django template how to look up a dictionary value with a variable

...unters a dot in a variable name, it tries the following lookups, in this order: Dictionary lookup. Example: foo["bar"] Attribute lookup. Example: foo.bar List-index lookup. Example: foo[bar] But you can make a filter which lets you pass in an argument: https://docs.djangoprojec...
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How do I read configuration settings from Symfony2 config.yml?

... In order to be able to expose some configuration parameters for your bundle you should consult the documentation for doing so. It's fairly easy to do :) Here's the link: How to expose a Semantic Configuration for a Bundle ...
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File system that uses tags rather than folders?

...Database File System. I know of one experimental implementation for Linux called DBFS. Microsoft started developing Windows Future Storage (WinFS) - it was planned to ship with Vista but due to technical problems the project was delayed and as far as I know finally canceled. NTFS is also capable of ...