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Why does typeof NaN return 'number'?
...avascript but common computer science principle.
From http://en.wikipedia.org/wiki/NaN:
There are three kinds of operation
which return NaN:
Operations with a NaN as at least one operand
Indeterminate forms
The divisions 0/0, ∞/∞, ∞/−∞, −∞/∞, and −∞/−...
Why is there no logical xor in JavaScript?
Why is there no logical xor in JavaScript?
19 Answers
19
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How is a CRC32 checksum calculated?
...ybe I'm just not seeing it, but CRC32 seems either needlessly complicated, or insufficiently explained anywhere I could find on the web.
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When should null values of Boolean be used?
...me you can. This will avoid many NullPointerExceptions and make your code more robust.
Boolean is useful, for example
to store booleans in a collection (List, Map, etc.)
to represent a nullable boolean (coming from a nullable boolean column in a database, for example). The null value might mean "...
What is the purpose of backbone.js?
...
Backbone.js is basically an uber-light framework that allows you to structure your Javascript code in an MVC (Model, View, Controller) fashion where...
Model is part of your code that retrieves and populates the data,
View is the HTML representation of this model (v...
What is the exact problem with multiple inheritance?
...hether multiple inheritance should be included into the next version of C# or Java. C++ folks, who are fortunate enough to have this ability, say that this is like giving someone a rope to eventually hang themselves.
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How to group time by hour or by 10 minutes
...RT(MINUTE, DT.[Date]) / 5),0,1) * 5, so that when I look at the data it's correlated with the nearest time slot
– hdost
Aug 3 '15 at 15:46
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What are carriage return, linefeed, and form feed?
...out advancing downward. The name comes from a printer's carriage, as monitors were rare when the name was coined. This is commonly escaped as \r, abbreviated CR, and has ASCII value 13 or 0x0D.
Linefeed means to advance downward to the next line; however, it has been repurposed and renamed. Used...
How to install a gem or update RubyGems if it fails with a permissions error
I'm trying to install a gem using gem install mygem or update RubyGems using gem update --system , and it fails with this error:
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How do I pass a unique_ptr argument to a constructor or a function?
...d I don't know very well how to handle unique_ptr parameters in constructors or functions. Consider this class referencing itself:
...