DAZ is the author of Jump Start Sinatra, a short book that helps you to get up to speed with Sinatra over a weekend. He's been using Sinatra since 2009. DAZ lives in Manchester, UK where he teaches maths and plays water polo.
JavaScript Functions That Define and Rewrite Themselves
The dynamic nature of JavaScript means that a function is able to not only call itself, but define itself, and even redefine itself.