Vector Utilities (vec)

The vec module provides vector transformations, filtering, sorting, deduplication, and collection manipulation.

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Functions

vec.sort(items: Vec[T]) -> Vec[T]

Returns a new vector sorted in ascending natural order.

const fruits = ["banana", "apple", "cherry"]
const sorted = vec.sort(fruits) // ["apple", "banana", "cherry"]

vec.reverse(items: Vec[T]) -> Vec[T]

Returns a reversed copy of the vector.

vec.unique(items: Vec[T]) -> Vec[T]

Returns elements with duplicates removed, preserving first-seen order.

const deduped = vec.unique(["a", "b", "a", "c"]) // ["a", "b", "c"]

vec.join(items: Vec[String], delimiter: String) -> String

Joins vector elements into a single string with the specified delimiter.

const s = vec.join(["2026", "08", "23"], "-") // "2026-08-23"

vec.contains(items: Vec[T], item: T) -> Bool

Returns true if the vector contains the specified item.

vec.slice(items: Vec[T], start: Int, end: Int) -> Vec[T]

Returns a subvector slice from index start up to index end.

vec.filter(items: Vec[T], predicate: Fn(T) -> Bool) -> Vec[T]

Returns a filtered vector containing elements that satisfy the predicate closure.

const even = vec.filter([1, 2, 3, 4], |x| { return x % 2 == 0 })

vec.map(items: Vec[T], transform: Fn(T) -> U) -> Vec[U]

Applies a transformation closure to each element and returns a new vector.

const doubled = vec.map([1, 2, 3], |x| { return x * 2 })

vec.find(items: Vec[T], predicate: Fn(T) -> Bool) -> Option[T]

Returns the first element that satisfies the predicate.