Flatten nested arrays to a single-level array. Example: [1, [2, 3]] becomes [1, 2, 3].
[1, [2, 3]]
[1, 2, 3]
element type
one or more nested arrays to flatten
flattened array containing all elements
Flatten nested arrays to a single-level array. Example:
[1, [2, 3]]becomes[1, 2, 3].