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How to concatenate two IEnumerable into a new IEnumerable?

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How to flatten tree via LINQ?

So I have simple tree: 14 Answers 14 ...
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How do I declare an array of weak references in Swift?

I'd like to store an array of weak references in Swift. The array itself should not be a weak reference - its elements should be. I think Cocoa NSPointerArray offers a non-typesafe version of this. ...
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Null or default comparison of generic argument in C#

I have a generic method defined like this: 13 Answers 13 ...
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How can I do test setup using the testing package in Go

How can I do overall test setup processing which sets the stage for all the tests when using the testing package ? 6 Answe...
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Distinct() with lambda?

Right, so I have an enumerable and wish to get distinct values from it. 18 Answers 18 ...
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Order a List (C#) by many fields? [duplicate]

...ustomer.OrderBy(c => c.LastName).ThenBy(c => c.FirstName) See MSDN: http://msdn.microsoft.com/en-us/library/bb549422.aspx share | improve this answer | follow ...
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What is

I'm having trouble understanding the following syntax: 5 Answers 5 ...
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How do I remove code duplication between similar const and non-const member functions?

Let's say I have the following class X where I want to return access to an internal member: 19 Answers ...
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How do browsers pause/change Javascript when tab or window is not active?

...val for background tabs. const double kBackgroundTabTimerInterval = 1.0; https://codereview.chromium.org/6546021/patch/1001/2001 Firefox Similar to Chrome, Firefox limits the minimum interval of setInterval to around 1000ms when the tab (not the window) is inactive. However, requestAnimationFrame...