DEV Community

DPC
DPC

Posted on

6 1 3 3 4

Daily JavaScript Challenge #JS-33: Count Unique Elements

Daily JavaScript Challenge: Count Unique Elements

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

Write a function that receives an array of integers and returns the count of unique elements in the array.

Ready to Begin?

https://www.dpcdev.com/

  1. Fork this challenge
  2. Write your solution
  3. Test it against the provided test cases
  4. 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/Global_Objects/Set

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

AWS GenAI LIVE image

Real challenges. Real solutions. Real talk.

From technical discussions to philosophical debates, AWS and AWS Partners examine the impact and evolution of gen AI.

Learn more

Top comments (0)

Image of Timescale

PostgreSQL for Agentic AI — Build Autonomous Apps on One Stack ☝️

pgai turns PostgreSQL into an AI-native database for building RAG pipelines and intelligent agents. Run vector search, embeddings, and LLMs—all in SQL

Build Today

👋 Kindness is contagious

Explore this insightful write-up, celebrated by our thriving DEV Community. Developers everywhere are invited to contribute and elevate our shared expertise.

A simple "thank you" can brighten someone’s day—leave your appreciation in the comments!

On DEV, knowledge-sharing fuels our progress and strengthens our community ties. Found this useful? A quick thank you to the author makes all the difference.

Okay