Daily JavaScript Challenge #JS-84: Find the First Repeated Character in a String

Daily JavaScript Challenge: Find the First Repeated Character in a String

Hey fellow developers! đź‘‹ Welcome to today’s JavaScript coding challenge. Let’s keep those programming skills sharp!

The Challenge

Difficulty: Easy
Topic: …


This content originally appeared on DEV Community and was authored by DPC

Daily JavaScript Challenge: Find the First Repeated Character in a String

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

The Challenge

Difficulty: Easy

Topic: String Manipulation

Description

Given a string, find and return the first character that repeats. If there is no such character, return null.

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


This content originally appeared on DEV Community and was authored by DPC


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APA

DPC | Sciencx (2025-01-27T00:00:41+00:00) Daily JavaScript Challenge #JS-84: Find the First Repeated Character in a String. Retrieved from https://www.scien.cx/2025/01/27/daily-javascript-challenge-js-84-find-the-first-repeated-character-in-a-string/

MLA
" » Daily JavaScript Challenge #JS-84: Find the First Repeated Character in a String." DPC | Sciencx - Monday January 27, 2025, https://www.scien.cx/2025/01/27/daily-javascript-challenge-js-84-find-the-first-repeated-character-in-a-string/
HARVARD
DPC | Sciencx Monday January 27, 2025 » Daily JavaScript Challenge #JS-84: Find the First Repeated Character in a String., viewed ,<https://www.scien.cx/2025/01/27/daily-javascript-challenge-js-84-find-the-first-repeated-character-in-a-string/>
VANCOUVER
DPC | Sciencx - » Daily JavaScript Challenge #JS-84: Find the First Repeated Character in a String. [Internet]. [Accessed ]. Available from: https://www.scien.cx/2025/01/27/daily-javascript-challenge-js-84-find-the-first-repeated-character-in-a-string/
CHICAGO
" » Daily JavaScript Challenge #JS-84: Find the First Repeated Character in a String." DPC | Sciencx - Accessed . https://www.scien.cx/2025/01/27/daily-javascript-challenge-js-84-find-the-first-repeated-character-in-a-string/
IEEE
" » Daily JavaScript Challenge #JS-84: Find the First Repeated Character in a String." DPC | Sciencx [Online]. Available: https://www.scien.cx/2025/01/27/daily-javascript-challenge-js-84-find-the-first-repeated-character-in-a-string/. [Accessed: ]
rf:citation
» Daily JavaScript Challenge #JS-84: Find the First Repeated Character in a String | DPC | Sciencx | https://www.scien.cx/2025/01/27/daily-javascript-challenge-js-84-find-the-first-repeated-character-in-a-string/ |

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