Clojure also has some third party libraries like Specter [1] that make nested traversal and mutation very succinct and performant. The author of Specter goes s

Clojure also has some third party libraries like Specter [1] that make nested traversal and mutation very succinct and performant. The author of Specter goes so far as to label traversal/update of deep immutable structures as "Clojure's Missing Piece". [1] https://github.com/redplanetlabs/specter https://github.com/redplanetlabs/specter