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Resizing an image in an HTML5 canvas

I'm trying to create a thumbnail image on the client side using javascript and a canvas element, but when I shrink the image down, it looks terrible. It looks as if it was downsized in photoshop with the resampling set to 'Nearest Neighbor' instead of Bicubic. I know its possible to get this to lo...
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What ports does RabbitMQ use?

What ports does RabbitMQ Server use or need to have open on the firewall for a cluster of nodes? 4 Answers ...
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Array slicing in Ruby: explanation for illogical behaviour (taken from Rubykoans.com)

I was going through the exercises in Ruby Koans and I was struck by the following Ruby quirk that I found really unexplainable: ...
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How do I truncate a .NET string?

I would like to truncate a string such that its length is not longer than a given value. I am writing to a database table and want to ensure that the values I write meet the constraint of the column's datatype. ...
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pytest: assert almost equal

How to do assert almost equal with py.test for floats without resorting to something like: 7 Answers ...
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Check substring exists in a string in C

I'm trying to check whether a string contains a substring in C like: 12 Answers 12 ...
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Specifying rails version to use when creating a new application

I have two versions of rails (2.1.0 and 2.2.2) installed in my computer. 7 Answers 7 ...
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Generate a random point within a circle (uniformly)

I need to generate a uniformly random point within a circle of radius R . 21 Answers ...
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What is the difference between exit(0) and exit(1) in C?

Can anyone tell me? What is the difference between exit(0) and exit(1) in C language? 11 Answers ...
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How to check whether a pandas DataFrame is empty?

How to check whether a pandas DataFrame is empty? In my case I want to print some message in terminal if the DataFrame is empty. ...