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

17 entries across 17 versions & 1 rubygems

Version	Path
trackler-2.2.1.13	tracks/kotlin/exercises/flatten-array/README.md
trackler-2.2.1.12	tracks/kotlin/exercises/flatten-array/README.md
trackler-2.2.1.11	tracks/kotlin/exercises/flatten-array/README.md
trackler-2.2.1.10	tracks/kotlin/exercises/flatten-array/README.md
trackler-2.2.1.9	tracks/kotlin/exercises/flatten-array/README.md
trackler-2.2.1.8	tracks/kotlin/exercises/flatten-array/README.md
trackler-2.2.1.7	tracks/kotlin/exercises/flatten-array/README.md
trackler-2.2.1.6	tracks/kotlin/exercises/flatten-array/README.md
trackler-2.2.1.5	tracks/kotlin/exercises/flatten-array/README.md
trackler-2.2.1.4	tracks/kotlin/exercises/flatten-array/README.md
trackler-2.2.1.3	tracks/kotlin/exercises/flatten-array/README.md
trackler-2.2.1.2	tracks/kotlin/exercises/flatten-array/README.md
trackler-2.2.1.1	tracks/kotlin/exercises/flatten-array/README.md
trackler-2.2.1.0	tracks/kotlin/exercises/flatten-array/README.md
trackler-2.2.0.6	tracks/kotlin/exercises/flatten-array/README.md
trackler-2.2.0.5	tracks/kotlin/exercises/flatten-array/README.md
trackler-2.2.0.4	tracks/kotlin/exercises/flatten-array/README.md