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-2.2.1.159	tracks/kotlin/exercises/flatten-array/README.md
trackler-2.2.1.158	tracks/kotlin/exercises/flatten-array/README.md
trackler-2.2.1.157	tracks/kotlin/exercises/flatten-array/README.md
trackler-2.2.1.156	tracks/kotlin/exercises/flatten-array/README.md
trackler-2.2.1.155	tracks/kotlin/exercises/flatten-array/README.md
trackler-2.2.1.154	tracks/kotlin/exercises/flatten-array/README.md
trackler-2.2.1.153	tracks/kotlin/exercises/flatten-array/README.md
trackler-2.2.1.152	tracks/kotlin/exercises/flatten-array/README.md
trackler-2.2.1.151	tracks/kotlin/exercises/flatten-array/README.md
trackler-2.2.1.150	tracks/kotlin/exercises/flatten-array/README.md
trackler-2.2.1.149	tracks/kotlin/exercises/flatten-array/README.md
trackler-2.2.1.148	tracks/kotlin/exercises/flatten-array/README.md
trackler-2.2.1.147	tracks/kotlin/exercises/flatten-array/README.md
trackler-2.2.1.146	tracks/kotlin/exercises/flatten-array/README.md
trackler-2.2.1.145	tracks/kotlin/exercises/flatten-array/README.md
trackler-2.2.1.144	tracks/kotlin/exercises/flatten-array/README.md
trackler-2.2.1.143	tracks/kotlin/exercises/flatten-array/README.md
trackler-2.2.1.142	tracks/kotlin/exercises/flatten-array/README.md
trackler-2.2.1.141	tracks/kotlin/exercises/flatten-array/README.md
trackler-2.2.1.140	tracks/kotlin/exercises/flatten-array/README.md