Clojure - Sequences

Sequences are created with the help of the ‘seq’ command. Following is a simple example of a sequence creation.

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

;; This program displays Hello World
(defn Example []
   (println (seq [1 2 3])))
(Example)

The above program produces the following output.

(1 2 3)

Following are the various methods available for sequences.

S.No.	Methods & Description
1	cons Returns a new sequence where ‘x’ is the first element and ‘seq’ is the rest.
2	conj Returns a new sequence where ‘x’ is the element that is added to the end of the sequence.
3	concat This is used to concat two sequences together.
4	distinct Used to only ensure that distinct elements are added to the sequence.
5	reverse Reverses the elements in the sequence.
6	first Returns the first element of the sequence.
7	last Returns the last element of the sequence.
8	rest Returns the entire sequence except for the first element.
9	sort Returns a sorted sequence of elements.
10	drop Drops elements from a sequence based on the number of elements, which needs to be removed.
11	take-last Takes the last list of elements from the sequence.
12	take Takes the first list of elements from the sequence.
13	split-at Splits the sequence of items into two parts. A location is specified at which the split should happen.