Create a flattened copy of an array.This function is valid in v2.1.0 to v2.16.0. This function has been downloaded 9 times.
Infinitythere will be no limit to the recursiveness of the flattening. Otherwise, if given, this should be a number indicated how many levels down this array should be flattened.
arrayup to the given
This function requires the following function which is included automatically: