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]




## 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

32 entries across 32 versions & 1 rubygems

Version	Path
trackler-2.2.1.45	tracks/kotlin/exercises/flatten-array/README.md
trackler-2.2.1.44	tracks/kotlin/exercises/flatten-array/README.md
trackler-2.2.1.43	tracks/kotlin/exercises/flatten-array/README.md
trackler-2.2.1.42	tracks/kotlin/exercises/flatten-array/README.md
trackler-2.2.1.41	tracks/kotlin/exercises/flatten-array/README.md
trackler-2.2.1.40	tracks/kotlin/exercises/flatten-array/README.md
trackler-2.2.1.39	tracks/kotlin/exercises/flatten-array/README.md
trackler-2.2.1.38	tracks/kotlin/exercises/flatten-array/README.md
trackler-2.2.1.37	tracks/kotlin/exercises/flatten-array/README.md
trackler-2.2.1.36	tracks/kotlin/exercises/flatten-array/README.md
trackler-2.2.1.35	tracks/kotlin/exercises/flatten-array/README.md
trackler-2.2.1.34	tracks/kotlin/exercises/flatten-array/README.md
trackler-2.2.1.33	tracks/kotlin/exercises/flatten-array/README.md
trackler-2.2.1.32	tracks/kotlin/exercises/flatten-array/README.md
trackler-2.2.1.31	tracks/kotlin/exercises/flatten-array/README.md
trackler-2.2.1.30	tracks/kotlin/exercises/flatten-array/README.md
trackler-2.2.1.29	tracks/kotlin/exercises/flatten-array/README.md
trackler-2.2.1.28	tracks/kotlin/exercises/flatten-array/README.md
trackler-2.2.1.27	tracks/kotlin/exercises/flatten-array/README.md
trackler-2.2.1.26	tracks/kotlin/exercises/flatten-array/README.md