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Contents
# Flatten Array
Take a nested list and return a single flattened list with all values except nil/null.
The challenge is to write a function that accepts an arbitrarily-deep nested list-like structure and returns a flattened structure without any nil/null values.
For Example
input: [1,[2,3,null,4],[null],5]
output: [1,2,3,4,5]
## Running the tests
Even though there are multiple implementations, we encourage to use Poly/ML.
```
$ poly -q < test_{ exercise }.sml
```
If you want to start an interactive session:
```
$ poly --use test_{ exercise }.sml
```
## Source
Interview Question [https://reference.wolfram.com/language/ref/Flatten.html](https://reference.wolfram.com/language/ref/Flatten.html)
## Submitting Incomplete Solutions
It's possible to submit an incomplete solution so you can see how others have completed the exercise.
Version data entries
48 entries across 48 versions & 1 rubygems