DEV Community

DPC
DPC

Posted on

4 3 3 2 2

Daily JavaScript Challenge #JS-76: Calculate the Sum of Diagonal Elements in a Matrix

Daily JavaScript Challenge: Calculate the Sum of Diagonal Elements in a Matrix

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

The Challenge

Difficulty: Medium

Topic: Matrix Manipulation

Description

Write a function that calculates the sum of all the elements on the main diagonal of a square matrix. The matrix will be provided as 2D array of numbers where each sub-array represents a row of the matrix.

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/Array

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

DevCycle image

Ship Faster, Stay Flexible.

DevCycle is the first feature flag platform with OpenFeature built-in to every open source SDK, designed to help developers ship faster while avoiding vendor-lock in.

Start shipping

Top comments (0)

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

If this **helped, please leave a ❤️ or a friendly comment!

Okay