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std/collections/distinct.ts

Deno standard library
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// Copyright 2018-2023 the Deno authors. All rights reserved. MIT license.// This module is browser compatible.
/** * Returns all distinct elements in the given array, preserving order by first * occurrence. * * @example * ```ts * import { distinct } from "https://deno.land/std@$STD_VERSION/collections/distinct.ts"; * import { assertEquals } from "https://deno.land/std@$STD_VERSION/testing/asserts.ts"; * * const numbers = [3, 2, 5, 2, 5]; * const distinctNumbers = distinct(numbers); * * assertEquals(distinctNumbers, [3, 2, 5]); * ``` */export function distinct<T>(array: readonly T[]): T[] { const set = new Set(array);
return Array.from(set);}