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Remove duplicated rows using dplyr

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How can I return an empty IEnumerable?

Given the following code and the suggestions given in this question , I've decided to modify this original method and ask if there are any values in the IEnumarable return it, if not return an IEnumerable with no values. ...
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What is the maximum number of characters that nvarchar(MAX) will hold?

I'm new to the concept nvarchar(MAX) . How many characters will it hold? 3 Answers 3 ...
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How to create a new language for use in Visual Studio

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What are '$$' used for in PL/pgSQL

Being completely new to PL/pgSQL , what is the meaning of double dollar signs in this function : 2 Answers ...
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How can I tell Moq to return a Task?

I've got an interface which declares 4 Answers 4 ...
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Where do I find the current C or C++ standard documents?

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When do we need to set ProcessStartInfo.UseShellExecute to True?

If we spawn a new process, when do we need to set UseShellExecute to True? 5 Answers ...
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Rails.env vs RAILS_ENV

I see both in examples when checking what env one is running in. What's preferred? Are they, for all intents and purposes equal? ...
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What's the difference between io.sockets.emit and broadcast?

What's the difference between io.sockets.emit and socket.broadcast.emit? Is it only that broadcast emits to everyone BUT the socket that sends it? ...