Tracks
/
Python
Python
/
Exercises
/
Flatten Array
Flatten Array

Flatten Array

Easy

Instructions

Take a nested list and return a single flattened list with all values except nil/null.

The challenge is to take an arbitrarily-deep nested list-like structure and produce a flattened structure without any nil/null values.

For example:

input: [1,[2,3,null,4],[null],5]

output: [1,2,3,4,5]

Edit via GitHub The link opens in a new window or tab
Python Exercism

Ready to start Flatten Array?

Sign up to Exercism to learn and master Python with 17 concepts, 140 exercises, and real human mentoring, all for free.