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What is the concat method in a Clojure sequence?

Chinweuba Elijah Azubuike

Grokking Modern System Design Interview for Engineers & Managers

Ace your System Design Interview and take your career to the next level. Learn to handle the design of applications like Netflix, Quora, Facebook, Uber, and many more in a 45-min interview. Learn the RESHADED framework for architecting web-scale applications by determining requirements, constraints, and assumptions before diving into a step-by-step design process.

Overview

A sequence is a data storage structure that holds a collection of data objects. In Clojure, we consider it a logical list. We use the seq method to build a sequence.

The concat method

concat is a sequence method that merges two sequences together.

Syntax

(concat seq1 seq2)
Syntax of a concat sequence

Parameters

This method takes the following parameters:

  • seq1: This represents the first sequence of items.
  • seq2: This represents the second sequence of items to be merged with the first.

Return value

This method returns a sequence with seq1 and seq2 joined together.

Code

(ns clojure.examples.example
(:gen-class))
(defn concatt []
(def seq1 (seq [1 2]))
(def seq2 (seq [3 4]))
(println (concat seq1 seq2)))
(concatt)
Example of the concat method in a clojure sequence

Explanation

  • Line 3: We define the concatt function.
  • Line 4: We define the first sequence.
  • Line 5: We define the second sequence.
  • Line 6: We use the concat method to join both seq1 and seq2. We use println to output the joint sequence.
  • Line 7: We call the concatt function.

RELATED TAGS

communitycreator
clojure
concat
sequence

CONTRIBUTOR

Chinweuba Elijah Azubuike

Grokking Modern System Design Interview for Engineers & Managers

Ace your System Design Interview and take your career to the next level. Learn to handle the design of applications like Netflix, Quora, Facebook, Uber, and many more in a 45-min interview. Learn the RESHADED framework for architecting web-scale applications by determining requirements, constraints, and assumptions before diving into a step-by-step design process.

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