Simple examples of writing your own functions

simple-functions-add-numbers.clj

(defn add-ten
  "A simple function to add two specific numbers"
  []
  (+ 3 10))

(add-ten)
;; => 13


(defn add-ten
  "A simple function to add 10 to a given number"
  [number]
  (+ number 10))

(add-ten 4)
;; => 14


(defn add-numbers
  "A simple function to add two given numbers"
  [number-1 number-2]
  (+ number-1 number-2))

(add-numbers 5 10)
;; => 15