Arrays

Interface LinkedListItem

chunk (array: Array<T>, n: number): Array<Array<T>>

Breaks an array into chunks of size at most n.

cumulative (array: Array<number>): Array<number>

Creates a cumulative array by adding its elements.

difference (a1: Array<T>, a2: Array<T>): Array<T>

Returns all elements that are only in one of a1 and a2.

flatten (array: Array<any>): Array<T>

Flattens a nested array into a single list.

intersect (a1: Array<any>, a2: Array<any>): Array<any>

Returns all elements that are in both a1 and a2.

join (arrays: Array<Array<any>>): Array<any>

Join multiple Arrays

last (array: Array<T>, i: number): T

Returns the last item in an array, or the ith item from the end.

list (a: number, b: number, step: number): Array<number>

Creates an array of numbers from 0 to a, or from a to b.

loop (array: Array<T>): (): T

Returns a function that can be called repeatedly, and returns items of the array, continuously looping

repeat (value: T, n: number): Array<T>

Creates an array of size n, containing value at every entry.

repeat2D (value: T, x: number, y: number): Array<Array<T>>

Creates a matrix of size x by y, containing value at every entry.

rotate (array: Array<T>, offset: number): Array<T>

Rotates the elements of an array by offset.

sortBy (array: Array<T>, fn: (x: T): any, reverse: boolean): Array<T>

Sorts an array by the return value when evaluating a given function.

tabulate (fn: (i: number): T, n: number): Array<T>

Creates an array of size n, with the result of fn(i) at position i.

tabulate2D (fn: (i: number, j: number): T, x: number, y: number): Array<Array<T>>

Creates a matrix of size x by y, with the result of fn(i, j) at position (i, j.

toLinkedList (array: Array<T>): Array<LinkedListItem<T>>

Converts an array to a linked list data structure.

total (array: Array<number>): number

Finds the sum of all elements in an numeric array.

unique (array: Array<T>): Array<T>

Filters all duplicate elements from an array.