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Repository Pattern Step by Step Explanation [closed]
Can someone please explain to me the Repository Pattern in .NET, step by step giving a very simple example or demo.
2 Answe...
What is the difference between a string and a byte string?
I am working with a library which returns a byte string and I need to convert this to a string.
7 Answers
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Setting up a common nuget packages folder for all solutions when some projects are included in multi
I have been using NuGet to retrieve packages from external and internal package sources, which is very convenient. But I have realized that the packages are by default stored per solution, which is very frustrating when some projects with NuGet references are included in several solutions. Then the ...
Difference Between Cohesion and Coupling
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Cohesion refers to what the class (or module) can do. Low cohesion would mean that the class does a great variety of actions - it is broad, unfocused on what it should do. High cohesion means that the class is focused on what it should be do...
What are the differences between Deferred, Promise and Future in JavaScript?
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In light of apparent dislike for how I've attempted to answer the OP's question. The literal answer is, a promise is something shared w/ other objects, while a deferred should be kept private. Primarily, a deferred (which generally extends Promise) can resolve itself, while a ...
How to set my default shell on Mac?
I do not like to retype fish every time I start terminal. I want fish on by default. How can I set fish shell as my default shell on a Mac?
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String is immutable. What exactly is the meaning? [duplicate]
...proceeding further with the fuss of immutability, let's just take a look into the String class and its functionality a little before coming to any conclusion.
This is how String works:
String str = "knowledge";
This, as usual, creates a string containing "knowledge" and assigns it a reference st...
How to inherit constructors?
Imagine a base class with many constructors and a virtual method
14 Answers
14
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Receive result from DialogFragment
...ns that the requestcode is for use in onActivityResult so I guess it's ok to use this approach.
– Giorgi
Apr 14 '13 at 18:45
87
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How do I create an average from a Ruby array?
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Try this:
arr = [5, 6, 7, 8]
arr.inject{ |sum, el| sum + el }.to_f / arr.size
=> 6.5
Note the .to_f, which you'll want for avoiding any problems from integer division. You can also do:
arr = [5, 6, 7, 8]
arr.inject(0.0) { |sum, el| sum + el } / arr.size
=> 6.5
You can define ...