DEV Community

Cover image for #7DaysJS: Even or Odd
Lautaro Lobo
Lautaro Lobo

Posted on • Originally published at on


#7DaysJS: Even or Odd

Welcome to day 2 of 7 Days of JavaScript!

Let’s begin our journey today. We need to write a function that takes an array and gives back two values: one with the sum of all the odd numbers of the array, and other with the sum of all the even numbers on the array.

It can’t be that hard right?

You can read the solution to today’s challenge here.

Top comments (2)

jenc profile image
Jen Chan

I used a filter for even and odd, then a reduce for both. Probably cost the browser more power eh?

lautarolobo profile image
Lautaro Lobo

Probably. Usually, for loops are faster, but maybe with larger inputs reduce outworks a for loop...

Visualizing Promises and Async/Await 🤯

async await

☝️ Check out this all-time classic DEV post