In Clojure In the following expression, there are three missing symbols (marked with underscores). (defn length [l]      (if (empty? l)           _                ( _ 1 ( _ (rest l))))) We want length to be a function which returns the number of elements in a list. Assume we are writing this function definition using recursion, what should be filled in in each of these underlined blanks?

Database System Concepts
7th Edition
ISBN:9780078022159
Author:Abraham Silberschatz Professor, Henry F. Korth, S. Sudarshan
Publisher:Abraham Silberschatz Professor, Henry F. Korth, S. Sudarshan
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In Clojure

In the following expression, there are three missing symbols (marked with underscores).

(defn length [l]
     (if (empty? l)
          _
               ( _ 1 ( _ (rest l)))))

We want length to be a function which returns the number of elements in a list.

Assume we are writing this function definition using recursion, what should be filled in in each of these underlined blanks?

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