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What does [:] mean?
I'm analyzing some Python code and I don't know what
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Do browsers send “\r\n” or “\n” or does it depend on the browser?
This question has bothered me for a million years... whenever I create a website with a textarea that allows multi-line (such as a "Bio" for a user's profile) I always end up writing the following paranoid code:
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What is process.env.PORT in Node.js?
what is process.env.PORT || 3000 used for in Node.js? I saw this somewhere:
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Repeat each row of data.frame the number of times specified in a column
What is the simplest way to expand each row the first two columns of the data.frame above, so that each row is repeated the number of times specified in the column 'freq'?
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Testing Abstract Classes
How do I test the concrete methods of an abstract class with PHPUnit?
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Ruby class types and case statements
What is the difference between
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ASP.NET WebApi unit testing with Request.CreateResponse
I am trying to write some unit tests for my ApiController and faced some issues. There is a nice extension method called Request.CreateResponse that helps a lot with generating response.
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Rails :dependent => :destroy VS :dependent => :delete_all
In rails guides it's described like this:
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How to get an array of specific “key” in multidimensional array without looping
Let's assume I have the following multidimensional array (retrieved from MySQL or a service):
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R programming: How do I get Euler's number?
For example, how would I go about entering the value e^2 in R?
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