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Daniel Irvine on building software

Coin Changer Speed Kata

27 June 2014

Until yesterday, I’d never attempted a code kata. Then I was given the challenge of practicing and perfecting one. Having spent roughly 8 hours on this, it’s now at a state where I’m somewhat happy with it. I’ll be performing this live to an audience today, but check out the recorded version of Coin Changer Kata on YouTube.

About the author

Daniel Irvine is a software craftsman at 8th Light, based in London. These days he prefers to code in Clojure and Ruby, despite having been a C++ and C# developer for the majority of his career.

For a longer bio please see To contact Daniel, send a tweet to @d_ir or use the comments section below.

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