Monthly Archives: November 2013

Get the message?

Following on from a bout of attempting (and finally succeeding) to get the content and background scripts in a Chrome extension to talk to one another, this seemed like a perfect opportunity to write down a couple of the things

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Posted in Javascript

Getting Some Context

Introduction I’ve recently started experimenting with creating Chrome extensions. Although there are a number of good tutorials out there  (turning divs red was particularly helpful), it’s almost impossible to have tutorials out there ready-and-waiting for all possible topics. So, let’s

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Posted in Javascript

Searching for primes

There’s a well known way to optimise a basic search for primes, but why does it work?

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Posted in Brain Pieces

Generating South African ID Numbers

Introduction An ID number is a basic requirement for various online applications. There are two ways we can take advantage of ID numbers – we can verify them using their check digit to ensure that the user entered their ID

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Posted in Javascript, Math