Nathan Marz' talk on Specter (Clojure Library that decouples navigation from transformation) is must-watch if you deal with data: https://www.youtube.com/watch?

Nathan Marz' talk on Specter (Clojure Library that decouples navigation from transformation) is must-watch if you deal with data: https://www.youtube.com/watch?v=VTCy_DkAJGk https://www.youtube.com/watch?v=VTCy_DkAJGk I use it in every project for data navigation and transformation, and it's more performant than standard Clojure data manipulation, while retaining types (instead of coercing back from seqs). E.g. if you have a map and you want to increment every value in the map: (require '[com.rpl.specter :as S]) ``` (->> {:a 5, :b 6, :c 7} (S/transform [S/MAP-VALS] inc)) => {:a 6, :b 7, :c 8} ``` ^ try to write that in normal clojure. Now let's say you have a map of vectors and want to increment all of those? (->> {:a 5, :b 6, :c 7} (S/transform [S/MAP-VALS S/ALL] inc)) ;; note the navigator juts got another level of nesting => {:a [2 3], :b [4 5], :c [6 7]}works for all clj data types, and of course it has navigators for recursive walking . It took me a while to get good at Specter, but it was worth it. I hear Rama uses Specter navigators internally.