Module list 

The list module — 32 functions (31 spec + 5 extensions + some alias).

All operations are immutable — they return new lists, never mutate.

Construction (4)

Function	Signature
list.empty	() -> list
list.of	(...items) -> list (variadic)
list.repeat	(value, count: number) -> list
list.range	(start: number, end: number) -> list

Access (5)

Function	Signature
list.length	(items: list) -> number
list.get	(items: list, index: number) -> any|nil
list.first	(items: list) -> any|nil
list.last	(items: list) -> any|nil
list.index_of	(items: list, value) -> number

Modification (10)

Function	Signature
list.append	(items: list, value) -> list
list.prepend	(items: list, value) -> list
list.insert	(items: list, index: number, value) -> list
list.remove	(items: list, index: number) -> list
list.update	(items: list, index: number, value) -> list
list.slice	(items: list, start: number, end: number) -> list
list.concat	(a: list, b: list) -> list
list.reverse	(items: list) -> list
list.flatten	(items: list) -> list
list.unique	(items: list) -> list

Higher-Order (9)

Function	Signature
list.map	(items: list, f: fn(any) -> any) -> list
list.filter	(items: list, pred: fn(any) -> bool) -> list
list.reduce	(items: list, init, f: fn(acc, item) -> acc) -> any
list.find	(items: list, pred: fn(any) -> bool) -> any|nil
list.find_index	(items: list, pred: fn(any) -> bool) -> number
list.every	(items: list, pred: fn(any) -> bool) -> bool
list.any	(items: list, pred: fn(any) -> bool) -> bool
list.sort	(items: list, cmp: fn(a, b) -> number) -> list
list.count	(items: list, pred: fn(any) -> bool) -> number

Query (4) — also non-higher-order

Function	Signature
list.contains	(items: list, value) -> bool
list.zip	(a: list, b: list) -> list
list.take	(items: list, n: number) -> list
list.drop	(items: list, n: number) -> list

Structs

ListModule

The list stdlib module.