I once liked the Clojure's less-parentheses approach. Today I found that you can't utilize s-expression comments easily in Clojure. e.g. In (let [x 1 y 2] x) When you are about to comment out the "y 2" part, you have to move the cursor back and forth to insert new parentheses. And you can't do this: user=> (let [x 1 (comment y 2)] x) IllegalArgumentException let requires an even number of forms in binding vector in user:1 clojure.core/let (core.clj:4043) (comment) in Clojure is not really comment. It returns nil. http://clojuredocs.org/clojure_core/clojure.core/comment vs. You can do this in Racket: > (let ([x 1] #;[y 2]) x) 1 #; is s-expression comment in Racket. Parentheses are there to group logically related things together.
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