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What's so different to Clojure's ? (let [a 1 [b c] (list 2 3) [d e] [4 5]] `(~a ~b ~c ~d ~e)) ;; => (1 2 3 4 5)
by didibus 2y ago
What's so different to Clojure's ?
(let [a 1
[b c] (list 2 3)
[d e] [4 5]]
`(~a ~b ~c ~d ~e))
;; => (1 2 3 4 5)
- tmtvl 2y agoBut what would be the equivalent of: (let ((quotient remainder (floor x y))) (+ (* quotient z) (* remainder (floor z y)))) Where floor is a function which returns multiple values rather than a list or vector of results? Also, but this is entirely on me being an absolute dullard, I like having the brackets around each binding as a kind of guardrails for my mind to not lose track of where I am and what belongs where.
- didibus 2y agoIt's just: (let [[quotient remainder] (floor x y)] (+ (* quotient z) (* remainder (first (floor z y))))) Because in Clojure there's no multiple value bind, when you want to return many results from a function, you wrap it in a vector, and that means you than just destructure that vector. That also means, it's not smart enough to know if it's used in a single value context or multi value context, so you need to always get the value out of the vector, which is why I call first in that second call to floor.