sort_key()

Syntax

sort_key(list, key_expr)

Sorts a copy of the list in the order or keys as defined by the key_expr for each element

sort_key([1,3,2],_)  => [1, 2, 3]
sort_key([1,3,2],-_)  => [3, 2, 1]
sort_key([range(10)],rand(1))  => [1, 0, 9, 6, 8, 2, 4, 5, 7, 3]
sort_key([range(20)],str(_))  => [0, 1, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 2, 3, 4, 5, 6, 7, 8, 9]