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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]


## Setup

Go through the project setup instructions for Xcode using Swift:

http://exercism.io/languages/swift


## 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

106 entries across 106 versions & 1 rubygems

Version Path
trackler-2.2.1.83 tracks/swift/exercises/flatten-array/README.md
trackler-2.2.1.82 tracks/swift/exercises/flatten-array/README.md
trackler-2.2.1.81 tracks/swift/exercises/flatten-array/README.md
trackler-2.2.1.80 tracks/swift/exercises/flatten-array/README.md
trackler-2.2.1.79 tracks/swift/exercises/flatten-array/README.md
trackler-2.2.1.78 tracks/swift/exercises/flatten-array/README.md
trackler-2.2.1.77 tracks/swift/exercises/flatten-array/README.md
trackler-2.2.1.76 tracks/swift/exercises/flatten-array/README.md
trackler-2.2.1.75 tracks/swift/exercises/flatten-array/README.md
trackler-2.2.1.74 tracks/swift/exercises/flatten-array/README.md
trackler-2.2.1.73 tracks/swift/exercises/flatten-array/README.md
trackler-2.2.1.72 tracks/swift/exercises/flatten-array/README.md
trackler-2.2.1.71 tracks/swift/exercises/flatten-array/README.md
trackler-2.2.1.70 tracks/swift/exercises/flatten-array/README.md
trackler-2.2.1.69 tracks/swift/exercises/flatten-array/README.md
trackler-2.2.1.68 tracks/swift/exercises/flatten-array/README.md
trackler-2.2.1.67 tracks/swift/exercises/flatten-array/README.md
trackler-2.2.1.66 tracks/swift/exercises/flatten-array/README.md
trackler-2.2.1.65 tracks/swift/exercises/flatten-array/README.md
trackler-2.2.1.64 tracks/swift/exercises/flatten-array/README.md