# Flatten Array

Welcome to Flatten Array on Exercism's Elixir Track.
If you need help running the tests or submitting your code, check out `HELP.md`.

## Instructions

Take a nested list and return a single flattened list with all values except nil/null.

The challenge is to take an arbitrarily-deep nested list-like structure and produce a flattened structure without any nil/null values.

For example:

input: [1,[2,3,null,4],[null],5]

output: [1,2,3,4,5]

## Source

### Created by

- @bernardoamc

### Contributed to by

- @angelikatyborska
- @Cohen-Carlisle
- @devonestes
- @jwworth
- @lpil
- @neenjaw
- @parkerl
- @sotojuan

### Based on

Interview Question - https://reference.wolfram.com/language/ref/Flatten.html