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

133 entries across 133 versions & 1 rubygems

Version	Path
trackler-2.2.1.119	tracks/kotlin/exercises/flatten-array/README.md
trackler-2.2.1.118	tracks/kotlin/exercises/flatten-array/README.md
trackler-2.2.1.117	tracks/kotlin/exercises/flatten-array/README.md
trackler-2.2.1.116	tracks/kotlin/exercises/flatten-array/README.md
trackler-2.2.1.115	tracks/kotlin/exercises/flatten-array/README.md
trackler-2.2.1.114	tracks/kotlin/exercises/flatten-array/README.md
trackler-2.2.1.113	tracks/kotlin/exercises/flatten-array/README.md
trackler-2.2.1.111	tracks/kotlin/exercises/flatten-array/README.md
trackler-2.2.1.110	tracks/kotlin/exercises/flatten-array/README.md
trackler-2.2.1.109	tracks/kotlin/exercises/flatten-array/README.md
trackler-2.2.1.108	tracks/kotlin/exercises/flatten-array/README.md
trackler-2.2.1.107	tracks/kotlin/exercises/flatten-array/README.md
trackler-2.2.1.106	tracks/kotlin/exercises/flatten-array/README.md
trackler-2.2.1.105	tracks/kotlin/exercises/flatten-array/README.md
trackler-2.2.1.104	tracks/kotlin/exercises/flatten-array/README.md
trackler-2.2.1.103	tracks/kotlin/exercises/flatten-array/README.md
trackler-2.2.1.102	tracks/kotlin/exercises/flatten-array/README.md
trackler-2.2.1.101	tracks/kotlin/exercises/flatten-array/README.md
trackler-2.2.1.100	tracks/kotlin/exercises/flatten-array/README.md
trackler-2.2.1.99	tracks/kotlin/exercises/flatten-array/README.md