How to use the reverse method in Clojure on a sequence

Clojure’s reverse method returns a sequence with its order reversed. A Clojure sequence is a data storage structure that holds a collection of data objects. It can be seen as a logical list. The seq method builds a sequence.

The code snippet below shows the use of the reverse method:

(reverse seq1)
seq1 is the sequence being inputted, and its reverse will be returned.

The reverse method accepts one input argument: a Clojure sequence. The input argument in the code snippet above is seq1. The reverse method returns a sequence with the same elements as the input sequence but with their order reversed. When the code snippet is executed, it returns a sequence containing all values in seq1 with their order reversed. Let’s look at an example.

Example

(ns clojure.examples.example
   (:gen-class))
(defn revers []
   (def seq1 (seq [1 2 8 9 1 0 6 8 2]))
   (println (reverse seq1)))
(revers)

Explanation

  • Line 3: We define a function, revers.
  • Line 4: We define a sequence named seq1 using the seq method.
  • Line 5: We use the reverse method to reverse the order of elements in seq1 and use println to print the result returned by reverse.
  • Line 6: We call the defined revers function.

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