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Need a simple explanation of the inject method

...umulator: the result of each run of the block is stored in the accumulator and then passed to the next execution of the block. In the case of the code shown above, you are defaulting the accumulator, result, to 0. Each run of the block adds the given number to the current total and then stores the r...
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How do I clone a range of array elements to a new array?

...reate a new array containing all the elements 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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How can I configure the font size for the tree item in the package explorer in Eclipse?

..., there was no way in Eclipse to change the font used for Package Explorer and other such views. You can only change the font for editor views. This is a policy decision on the part of the Eclipse developers (see, e.g., bugs 49548, 202091). (Grumble.) The font used is the one set by the general look...
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Sublime Text 2: Trim trailing white space on demand

...lower I use TrailingSpaces plugin for this. Highlight trailing spaces and delete them in a flash. ST2 provides a way to automatically delete trailing spaces upon file save. Depending on your settings, it may be more handy to just highlight them and/or delete them by hand. This plugin p...
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What does “1 line adds whitespace errors” mean when applying a patch?

I'm editing some markdown files of a cloned remote repository, and wanted to test creating and applying patches from one branch to another. However, every time I make any change at all, I get the following message during git apply : ...
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python max function using 'key' and lambda expression

I come from OOP background and trying to learn python. I am using the max function which uses a lambda expression to return the instance of type Player having maximum totalScore among the list players . ...
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Does const mean thread-safe in C++11?

...ad-safe in C++11. Is that true? It is somewhat true... This is what the Standard Language has to say on thread-safety: [1.10/4] Two expression evaluations conflict if one of them modifies a memory location (1.7) and the other one accesses or modifies the same memory location. [1.10/21] The executi...
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how to check the dtype of a column in python pandas

I need to use different functions to treat numeric columns and string columns. What I am doing now is really dumb: 6 Answer...
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How to remove a key from Hash and get the remaining hash in Ruby/Rails?

... your five-minutes-of-editing are up, you can always copy, delete, modify, and repost a comment. – iconoclast May 13 at 23:17 add a comment  |  ...
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Best practice to return errors in ASP.NET Web API

... For me I usually send back an HttpResponseException and set the status code accordingly depending on the exception thrown and if the exception is fatal or not will determine whether I send back the HttpResponseException immediately. At the end of the day it's an API sending b...