Fixed link to that style guide entry: https://guide.clojure.style/#opt-commas-in-map-literals https://guide.clojure.style/#opt-commas-in-map-literals Per that

Fixed link to that style guide entry: https://guide.clojure.style/#opt-commas-in-map-literals https://guide.clojure.style/#opt-commas-in-map-literals Per that style guide, the above map should be formatted like this: {:a 1 2 :bar [1 2 3] :baz} Most maps written in EDN have keys of a consistent type. A map whose keys are consistently keywords would look like this when formatted: {:a 1 :bar "https://example.com/" :baz [1 2 3]} Or like this, when condensed to one line: {:a 1, :bar "https://example.com/", :baz [1 2 3]} The first map had keys of three different types: keyword `:a`, integer `2`, and vector `[1 2 3]`. Why would one want a format that supports maps with mixed-type keys? As a contrived example, mixed-type keys let you define a sparse 2D tile-based map for a game that is indexed by x and y coordinates: {:default {:type :grass} [0 1] {:type :npc-rival} [2 3] {:type :wall} [2 4] {:type :wall} [100 -5] {:type :treasure, :contents :sword-of-slaying}} HN comment formatting help: https://news.ycombinator.com/formatdoc https://news.ycombinator.com/formatdoc. I indented the above code by two spaces.