@tsupc/array

Small, tree-shakeable array helpers for TypeScript and JavaScript.

Install

npm install @tsupc/array

Usage

import { contains } from "@tsupc/array";

contains([1, 2, 3], 2);
// => true

contains(["1", "2", "3"], 2);
// => false

CommonJS is supported as well:

const { contains } = require("@tsupc/array");

API

contains(array, item)

Returns true when array contains item using strict equality (===).

contains([1, 2, 3], 2);
// => true

Important behavior:

• No type coercion is performed, so 1 and "1" are treated as different values.
• NaN does not match itself because the helper uses ===.
• The input array is never modified.

License

MIT