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How do I represent a hextile/hex grid in memory?

...Amit Patel has posted an amazing page on this topic. It's so comprehensive and wonderful that it needs to be the definitive answer to this question: Hexagonal Grids share | improve this answer ...
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Why is char[] preferred over String for passwords?

...method. Similarly, I have come across a suggestion not to use String to handle passwords. 17 Answers ...
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Why would I ever use push_back instead of emplace_back?

...ush_back(x); v.emplace_back(x); After your optimizing compiler gets its hands on this, there is no difference between these two statements in terms of generated code. The traditional wisdom is that push_back will construct a temporary object, which will then get moved into v whereas emplace_back w...
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Why is NaN not equal to NaN? [duplicate]

The relevant IEEE standard defines a numeric constant NaN (not a number) and prescribes that NaN should compare as not equal to itself. Why is that? ...
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Disable browsers vertical and horizontal scrollbars

Is it possible to disable the browsers vertical and horizontal scrollbars using jQuery or javascript? 11 Answers ...
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NHibernate ISession Flush: Where and when to use it, and why?

...nfused is the use of session.Flush ,in conjunction with session.Commit , and session.Close . 4 Answers ...
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Arduino Sketch upload issue - avrdude: stk500_recv(): programmer is not responding

...e with an ATmega328 . I am working on Ubuntu 12.04 (Precise Pangolin), and the Arduino IDE's version is 1.0. Recently, I tried to upload a few of the sample sketches onto it, such as the Blink one. However, none of my attempts are working and they result in the same error every time I try it: ...
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Make .git directory web inaccessible

I have a website that I use github (closed source) to track changes and update site. The only problem is, it appears the .git directory is accessible via the web. How can I stop this and still be able to use git? ...
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When use getOne and findOne methods Spring Data JPA

...ing a method on it is required. findOne()/findById() is really more clear and simple to use than getOne(). So in the very most of cases, favor findOne()/findById() over getOne(). API Change From at least, the 2.0 version, Spring-Data-Jpa modified findOne(). Previously, it was defined in the Cru...
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jQuery: Get height of hidden element in jQuery

... is within a div that is hidden. Right now I show the div, get the height, and hide the parent div. This seems a bit silly. Is there a better way? ...