DEV Community

DPC
DPC

Posted on

3 2 2 3 3

Daily JavaScript Challenge #JS-37: Find Longest Substring Without Repeating Characters

#javascript #devchallenge #programming #webdev

Daily JavaScript Challenge: Find Longest Substring Without Repeating Characters

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

The Challenge

Difficulty: Medium

Topic: Strings

Description

Given a string, find the length of the longest substring that does not contain any repeating characters.

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

profile
MongoDB
 Promoted

Build gen AI apps that run anywhere with MongoDB Atlas

Build gen AI apps that run anywhere with MongoDB Atlas

MongoDB Atlas bundles vector search and a flexible document model so developers can build, scale, and run gen AI apps without juggling multiple databases. From LLM to semantic search, Atlas streamlines AI architecture. Start free today.

Start Free

Top comments (0)

profile
MongoDB
 Promoted

Gen AI apps are built with MongoDB Atlas

Gen AI apps are built with MongoDB Atlas

MongoDB Atlas is the developer-friendly database for building, scaling, and running gen AI & LLM apps—no separate vector DB needed. Enjoy native vector search, 115+ regions, and flexible document modeling. Build AI faster, all in one place.

Start Free

👋 Kindness is contagious

Explore this practical breakdown on DEV’s open platform, where developers from every background come together to push boundaries. No matter your experience, your viewpoint enriches the conversation.

Dropping a simple “thank you” or question in the comments goes a long way in supporting authors—your feedback helps ideas evolve.

At DEV, shared discovery drives progress and builds lasting bonds. If this post resonated, a quick nod of appreciation can make all the difference.

Okay