Monthly Archives: April 2015

Creating ASCII art in functional Swift

Posted on April 29, 2015 by Josh Smith

This article explores an iOS app, written in a functional Swift style, that converts an image to ASCII art. For example, when given the famous Lenna photograph… …it creates a string that, when printed, looks something like this… Zooming into … Continue reading →

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Zipping two lists in Haskell

Posted on April 21, 2015 by Josh Smith

Studying a pure functional programming, such as Haskell, can be an eye-opening experience. The standard library in Haskell provides a zip function, which combines the elements of two lists into a single list of tuples. I decided to implement my own version, named zip … Continue reading →

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Caesar cipher in Swift

Posted on April 14, 2015 by Josh Smith

I posted a Swift project to GitHub that implements the Caesar cipher, which was the encryption technique used to protect Julius Caesar’s personal correspondence. It’s a straightforward algorithm that maps each letter in the alphabet to another letter. The code also … Continue reading →

Posted in Swift | Tagged , | 2 Comments