Cover image for #7DaysJS: Even or Odd

#7DaysJS: Even or Odd

lautarolobo profile image Lautaro Lobo Originally published at lautarolobo.xyz on ・1 min read

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.


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


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