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Does the APNS device token ever change, once created?

... From [Apple Documentation ApplePushService]2 The form of this phase of token trust ensures that only APNs generates the token which it will later honor, and it can assure itself that a token handed to it by a device is the same token that it previously provisioned for ...
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In C#, can a class inherit from another class and an interface?

...an inherit from a class and an interface. The example code below doesn't work but I think it conveys what I want to do. The reason that I want to do this is because at my company we make USB, serial, Ethernet, etc device. I am trying to develop a generic component/interface that I can use to write ...
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What is the difference between a weak reference and an unowned reference?

...old on the referred object (a.k.a. they don't increase the retain count in order to prevent ARC from deallocating the referred object). But why two keywords? This distinction has to do with the fact that Optional types are built-in the Swift language. Long story short about them: optional types offe...
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How do I remove a property from a JavaScript object?

... Like this: delete myObject.regex; // or, delete myObject['regex']; // or, var prop = "regex"; delete myObject[prop]; Demo var myObject = { "ircEvent": "PRIVMSG", "method": "newURI", "regex": "^http://.*" }; delete myObject.regex; consol...
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Check Whether a User Exists

...o check if the user exists, use if with id directly, as if already checks for the exit code. There's no need to fiddle with strings, [, $? or $(): if id "$1" &>/dev/null; then echo 'user found' else echo 'user not found' fi (no need to use -u as you're discarding the output anyway) A...
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How to dynamically create generic C# object using reflection? [duplicate]

...peof(Item) }; var makeme = d1.MakeGenericType(typeArgs); object o = Activator.CreateInstance(makeme); Per your edit: For that case, you can do this ... var d1 = Type.GetType("GenericTest.TaskA`1"); // GenericTest was my namespace, add yours Type[] typeArgs = { typeof(Item) }; var makeme = d1.Mak...
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How to configure 'git log' to show 'commit date'

How can I configure git log to show commit date instead of author date ? 3 Answers ...
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External VS2013 build error “error MSB4019: The imported project was not found”

...will add the removed node again. Otherwise, if you need to use webdeploy or you use a build server, the above solution will not work but you can specify the VisualStudioVersion property in your build script: msbuild myproject.csproj /p:VisualStudioVersion=12.0 or edit your build definition: ...
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Pimpl idiom vs Pure virtual class interface

I was wondering what would make a programmer to choose either Pimpl idiom or pure virtual class and inheritance. 10 Answers...
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How to determine the screen width in terms of dp or dip at runtime in Android?

...ightPixels / density; float dpWidth = outMetrics.widthPixels / density; OR Thanks @Tomáš Hubálek DisplayMetrics displayMetrics = context.getResources().getDisplayMetrics(); float dpHeight = displayMetrics.heightPixels / displayMetrics.density; float dpWidth = displayMetrics.widthPixels /...