Reputation: 2543
So I have a list of functions and a list of data:
[fn1 fn2 fn3] [item1 item2 item3]
What can I do to apply each function to its corresponding data item:
[(fn1 item1) (fn2 item2) (fn3 item3)]
Example:
[str #(* 2 %) (partial inc)] [3 5 8]
=> ["3" 10 9]
Upvotes: 8
Views: 218
Reputation: 34800
An alternative, not necessarily better:
user=> (for [[f x] (map vector [neg? pos? number?] [1 2 "foo"])]
#_=> (f x))
(false true false)
To make the map
version suitable for varargs:
user=> (map (fn [f & args] (apply f args)) [+ - *] [1 2 3] [4 5 6] [7 8 9])
(12 -11 162)
Upvotes: 2
Reputation: 222118
You can use map
(map #(%1 %2) [str #(* 2 %) (partial inc)] [3 5 8])
("3" 10 9)
If you need a vector back, you can (apply vector ...)
(apply vector (map #(%1 %2) [str #(* 2 %) (partial inc)] [3 5 8]))
["3" 10 9]
Disclaimer: I don't know much Clojure, so there would probably be better ways to do this.
Upvotes: 7