Title: Lenses for the Mere Mortal
Subtitle: PureScript Edition
Description: > Lenses are used (in statically typed functional programming languages) to look inside and "modify" nested data structures. They're notoriously hard to learn, but I believe that's a historical accident. This book teaches lenses in a way tailored to beginners.
Subjects: Nonfiction, Programming, Functional programming (Computer science), PureScript