JavaScript Problem: Flattening an Array of Sub-arrays

A multi-dimensional array is basically an array of sub-arrays. What if you had such an array and you needed to flatten it; take all of the elements and include them in a single array without any sub-arrays. That is the problem we will solve in this tutorial. The solutions involves recursion and uses other syntax in interesting ways.

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Tutorials referred to in this video:
Map method of arrays: https://youtu.be/W5TtMAYUPGQ
Recursion: https://youtu.be/py7ZWFjrwEs
Another recursion tutorial: https://youtu.be/A4kWlbuefsU
Article on finding max number in array: https://medium.com/@stevenhancock83/javascript-tip-finding-the-min-and-max-value-in-an-array-2094eb19e0ee

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