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What is the vector nth method in Clojure?

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.

What is a vector in Clojure?

A vector is a Clojure data structure that stores sequentially indexed data.

Let's look at the nth vector method in detail.

Syntax

(nth vec index)

Parameters

The nth method receives two parameters:

  1. vec: This is the vector containing a list of elements.
  2. index: This is the position where a particular element is placed in the vector.

Return value

The method returns an element from the vector located at the index position.

Example

(ns clojure.examples.example
   (:gen-class))
(defn nthh []
   (println (nth (vector 5 4 3 2 1) 3))
   (println (nth (vector 5 4 4 2 1) 1)))
(nthh)
Vector nth method

Explanation

From the code above:

  • Line 3: We define a function nthh.
  • Line 4: We print the element returned using println. We use the nth method to get the value at the index position 3 from the vector.
  • Line 5: We print the element returned using the println. Again, we use the nth method to get the value at the index position 1 from the vector.
  • Line 6: We call the nthh function.
Note: The nth method and the get method are very similar in their functionality.

RELATED TAGS

nth mehtod
vector method
clojure
communitycreator

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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