Skip to content

DEV Community

DPC

Posted on Apr 22

7

4

4

3

2

Daily JavaScript Challenge #JS-160: Find the Single Non-Duplicate Element in an Array

#javascript #devchallenge #programming #webdev

Daily JavaScript Challenge: Find the Single Non-Duplicate Element in an Array

Hey fellow developers! 👋 Welcome to today's JavaScript coding challenge. Let's keep those programming skills sharp!

The Challenge

Difficulty: Medium

Topic: Array Manipulation

Description

Given a sorted array where every element appears twice except for one element which appears only once, find the single element that appears only once. Your solution should have a linear runtime complexity and you cannot use extra space (modify in-place if required).

Ready to Begin?

https://www.dpcdev.com/

Fork this challenge
Write your solution
Test it against the provided test cases
Share your approach in the comments below!

Want to Learn More?

Check out the documentation about this topic here: https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Operators/Bitwise_XOR

Join the Discussion!

How did you approach this problem?
Did you find any interesting edge cases?
What was your biggest learning from this challenge?

Let's learn together! Drop your thoughts and questions in the comments below. 👇

This is part of our Daily JavaScript Challenge series. Follow me for daily programming challenges and let's grow together! 🚀

javascript #programming #coding #dailycodingchallenge #webdev

Join the $150k MiniMax AI Agent Challenge — Build your first AI Agent 🤖

Developers, innovators, and AI tinkerers, build your AI Agent and win $150,000 in cash. 💰

Top comments (0)

Subscribe

Short-term memory for faster AI agents

AI agents struggle with latency and context switching. Redis fixes it with a fast, in-memory layer for short-term context—plus native support for vectors and semi-structured data to keep real-time workflows on track.