@techtonica.bsky.socialDid you read our latest newsletter? Here's a code challenge to stimulate your mind. Let's see what you got!
Given an array of ints, return the number of 9s in the array.
array_count9([1, 2, 9]) → 1
array_count9([1, 9, 9]) → 2
array_count9([1, 9, 9, 3, 9]) → 3
