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Multiple Type Constraints in Swift

...se a where clause which lets you specify as many requirements as you want (all of which must be fulfilled) separated by commas Swift 2: func someFunc<T where T:SomeProtocol, T:SomeOtherProtocol>(arg: T) { // stuff } Swift 3 & 4: func someFunc<T: SomeProtocol & SomeOtherProt...
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Renew Push certificate and keep current App Store App working

... This is really interesting... is there any way I can use it for VoIP pushes? So far use of keys seems pretty limited to regular notifications? – MegaManX May 14 '18 at 9:20 ...
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What is the most efficient string concatenation method in python?

... idiomatic and thus easier for other python programmers to understand. Finally, the golden rule of optimization: don't optimize unless you know you need to, and measure rather than guessing. You can measure different methods using the timeit module. That can tell you which is fastest, instead of r...
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Use of “this” keyword in formal parameters for static methods in C#

...is an extension method. See here for an explanation. Extension methods allow developers to add new methods to the public contract of an existing CLR type, without having to sub-class it or recompile the original type. Extension Methods help blend the flexibility of "duck typing" support p...
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Ruby: extend self

...ea of extend . However, what's happening in this segment of code? Specifically, what does extend do? Is it just a convenient way of making the instance methods into class methods? Why would you do it this way rather than specifying class methods from the beginning? ...
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How can I change Eclipse theme?

...orthemes.org. The easiest way is to add this update URI to "Help -> Install New Software" and install it from there. Eclipse Color Themes This adds a "Color Theme" menu item under Window -> Preferences -> Appearance Where you can select from a large range of editor themes. My pref...
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jquery $(window).width() and $(window).height() return different values when viewport has not been r

I am writing a site using jquery that repeatedly calls $(window).width() and $(window).height() to position and size elements based on the viewport size. ...
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Correct use of flush() in JPA/Hibernate

...nstructions they are supposed to send to the database, often until you actually commit the transaction. For example, you call em.persist(), Hibernate remembers it has to make a database INSERT, but does not actually execute the instruction until you commit the transaction. Afaik, this is mainly done...
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Can I publish a private NuGet package?

... similar teams at my company are working on. However, the assembly isn't really code that I want to share with the world. ...
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PermGen elimination in JDK 8

I have installed JDK 8 and trying to run Eclipse. I am getting following warning message: 6 Answers ...