permutations | /collections/mod.ts | std@0.181.0

function permutations

import { permutations } from "https://dotland.deno.dev/std@0.181.0/collections/mod.ts";

permutations<T>(inputArray: readonly T[]): T[][]

Builds all possible orders of all elements in the given array Ignores equality of elements, meaning this will always return the same number of permutations for a given length of input.

Examples

Example 1

import { permutations } from "https://deno.land/std@0.181.0/collections/permutations.ts";
import { assertEquals } from "https://deno.land/std@0.181.0/testing/asserts.ts";

const numbers = [ 1, 2 ];
const windows = permutations(numbers);

assertEquals(windows, [
  [ 1, 2 ],
  [ 2, 1 ],
]);

Examples

Type Parameters

Parameters

Returns