collections

List, set, and queue utilities.

use collections

Functions

Function	Signature	Description
set	(list) -> [Any]	Remove duplicates (returns deduplicated list)
unique	(list) -> [Any]	Alias for set
group_by	(list, fn) -> Map	Group elements by key function
count_by	(list, fn) -> Map	Count elements by key function
chunk	(list, size) -> [[Any]]	Split list into chunks
flatten	(nested) -> [Any]	Flatten nested lists one level
zip_with	(a, b, fn) -> [Any]	Combine two lists element-wise with a function
partition	(list, fn) -> [[Any], [Any]]	Split list into [matches, non-matches]
frequencies	(list) -> Map	Count occurrences of each element
min_by	(list, fn) -> Any	Minimum element by key function
max_by	(list, fn) -> Any	Maximum element by key function
sort_by	(list, fn) -> [Any]	Sort by key function
index_of	(list, val) -> Int | nil	Index of first occurrence
includes	(list, val) -> Bool	Check if list contains value

Built-in list functions (map, filter, reduce, take, skip, find, contains, len, push, concat) are available without use.