lib.lists.flatten

Flatten the argument into a single list; that is, nested lists are spliced into the top-level lists.

Inputs

x

1. Function argument

Type

flatten :: [a | [a | [a | ...]]] -> [a]

Examples

flatten [1 [2 [3] 4] 5]
=> [1 2 3 4 5]
flatten 1
=> [1]

Noogle detected

• lib.flatten

flatten = x: if isList x then concatMap (y: flatten y) x else [ x ];