Refactor `minecheck.js`

## Objective
Reduce size of code and / or break file into multiple smaller functions as per functional programming ideals.

## Ideas
- Implement the `Array.reduce()` method in order to not have to carry each iteration result as an argument
Currently function is called recursively, perhaps a function with the amount of times it needs to be called can be created and then it runs the `.reduce()` method on it.