Clojure - Doseq Statement

The ‘doseq’ statement is similar to the ‘for each’ statement which is found in many other programming languages. The doseq statement is basically used to iterate over a sequence.

Syntax

Following is the general syntax of the doseq statement.

(doseq (sequence)
   statement#1)

Following is the diagrammatic representation of this loop.

Example

Following is an example of the doseq statement.

(ns clojure.examples.hello
   (:gen-class))

;; This program displays Hello World
(defn Example []
   (doseq [n [0 1 2]]
   (println n)))
(Example)

In the above example, we are using the doseq statement to iterate through a sequence of values 0, 1, and 2 which is assigned to the variable n. For each iteration, we are just printing the value to the console.

Output

The above code produces the following output.

0
1
2