Sunday, October 5, 2025
Latest:
  • German Pronouns with Nominative, Accusative, and Dative cases
  • German articles for the nominative, accusative, and dative cases
  • Der kleine Vogel und die Sonne
  • German alphabet pronunciation
  • Command design pattern
Upokary

Upokary

Quality information

  • Health
  • Life
  • Fashion
  • Food
  • Code
  • English
  • বাংলা
Technology 

Find repeating elements in a given array

Published: November 19, 2021Last updated: November 19, 2021 array, duplicate, JavaScript, repeat

The problem:

Write a program to show repeating elements in an array. Consider the time complexity when writing code.

Problem description

The array length can be any integer (N) and print the number as soon as you find a duplicate.

    const arr = [2, 7, 4, 7, 8, 3, 4];
    for(let i = 0; i < arr.length; i++){
        for(let j = 0; j <= i; j++) {
            if(arr[j] === arr[i] && j !== i){
                console.log(arr[i]);
                break;
            }
        }
    }

You May Also Like

Facade design pattern

December 24, 2023 beroza

Adapter design pattern

February 19, 2023 beroza

Write a Program to Display Table of Food Orders in a Restaurant

January 14, 2023 beroza

What are differences between “mvn clean package” and “mvn clean install” in maven?

March 7, 2019 beroza

Uncaught Error: Invariant Violation: Element type is invalid: expected a string or a class/function but got: object

December 16, 2021 beroza

Horizontal and Vertical scaling

December 4, 2021 beroza

Rules of writing clean code

November 6, 2022 beroza

How to copy WordPress live database to local database?

May 17, 2019 beroza

TypeError: Cannot add property X, object is not extensible

July 29, 2021 beroza

Why Upokary?

Upokary.com is a useful application in everyday life. It provides very handy information regarding every aspect of life. Each and every tip of upokary.com is meant to make life better.

Upokary tools

  • Youtube thumbnail
  • Youtube video downloader

Useful Links

  • Handy code
  • Technology
  • People
  • Programming
  • Quote
  • Travel
  • WordPress
  • IELTS
  • Kids

Pages

  • Sitemap
  • Privacy policy
  • About us
  • Contact us

Support

For any kind of query or question please drop a message in the following email: upokary@gmail.com
Copyright © 2025 Upokary. All rights reserved.