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Need a simple explanation of the inject method

...back into the accumulator. The next block call has this new value, adds to it, stores it again, and repeats. At the end of the process, inject returns the accumulator, which in this case is the sum of all the values in the array, or 10. Here's another simple example to create a hash from an array ...
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How do I clone a range of array elements to a new array?

...ents from X that begin at index 3 and ends in index 7. Sure I can easily write a loop that will do it for me but I would like to keep my code as clean as possible. Is there a method in C# that can do it for me? ...
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Do Facebook Oauth 2.0 Access Tokens Expire?

I am playing around with the Oauth 2.0 authorization in Facebook and was wondering if the access tokens Facebook passes out ever expire. If so, is there a way to request a long-life access token? ...
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Do I need to close() both FileReader and BufferedReader?

...follow | edited Feb 12 '15 at 20:46 Chuck L 33844 silver badges1919 bronze badges answere...
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Purpose of memory alignment

Admittedly I don't get it. Say you have a memory with a memory word of length of 1 byte. Why can't you access a 4 byte long variable in a single memory access on an unaligned address(i.e. not divisible by 4), as it's the case with aligned addresses? ...
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Shuffle an array with python, randomize array item order with python

What's the easiest way to shuffle an array with python? 11 Answers 11 ...
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Role-based access control (RBAC) vs. Claims-based access control (CBAC) in ASP.NET MVC

What are the main benefits of using CBAC vs. RBAC ? When is it better to use CBAC and when is it better to use RBAC? 11...
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Can a CSS class inherit one or more other classes?

...r for so long and not knowing the answer to this question, I actually hope it's possible and I just didn't know about rather than what I think is the answer (which is that it's not possible). ...
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Can one do a for each loop in java in reverse order?

... The Collections.reverse method actually returns a new list with the elements of the original list copied into it in reverse order, so this has O(n) performance with regards to the size of the original list. As a more efficient solution, you could write a decorator that presents a rev...
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How to “perfectly” override a dict?

... You can write an object that behaves like a dict quite easily with ABCs (Abstract Base Classes) from the collections.abc module. It even tells you if you missed a method, so below is the minimal version that shuts the ABC up. from co...