"Islands of functional code in a sea of imperative code." - Paraphrased Erik Meijer I've found that my most reusable code is composed of pure functions. The im

"Islands of functional code in a sea of imperative code." - Paraphrased Erik Meijer I've found that my most reusable code is composed of pure functions. The imperative stuff is always changing depending on the circumstances but my functions are a solid base upon which I build.