check out my solution

Done. Thanks.

Count the letters, the cases where your function should return true have 3 of one kind and 2 of other.
The one where your function should return false has 3 different letters there.

I do not understand the terms of the problem.
Why this condition ['b', 'b', 'a', 'b', 'a'] is true
This condition ['a', 'a', 'b', 'c', 'b'] is is false
And this condition ['c', 'a', 'c', 'a', 'c'] is true

Add ['a', 'a', 'a', 'a', 'a'] as a fixed test.

Fixed. Thanks.

Typo in the description: should be

Given an array with 5 string values 'a', 'b' or 'c'. Check if the array contains exactly, three of the same values and two of the same values.

@osuushi you should add some test cases for passing in 2x and x^2

Something is missing from the Bomb

Needs to be the NEXT biggest number, not the biggest number. (It took me a while to figure this out too)