# is-typed-array [![Version Badge][npm-version-svg]][package-url] [![github actions][actions-image]][actions-url] [![coverage][codecov-image]][codecov-url] [![dependency status][5]][6] [![dev dependency status][7]][8] [![License][license-image]][license-url] [![Downloads][downloads-image]][downloads-url] [![npm badge][npm-badge-png]][package-url] Is this value a JS Typed Array? This module works cross-realm/iframe, does not depend on `instanceof` or mutable properties, and despite ES6 Symbol.toStringTag. ## Example ```js var isTypedArray = require('is-typed-array'); var assert = require('assert'); assert.equal(false, isTypedArray(undefined)); assert.equal(false, isTypedArray(null)); assert.equal(false, isTypedArray(false)); assert.equal(false, isTypedArray(true)); assert.equal(false, isTypedArray([])); assert.equal(false, isTypedArray({})); assert.equal(false, isTypedArray(/a/g)); assert.equal(false, isTypedArray(new RegExp('a', 'g'))); assert.equal(false, isTypedArray(new Date())); assert.equal(false, isTypedArray(42)); assert.equal(false, isTypedArray(NaN)); assert.equal(false, isTypedArray(Infinity)); assert.equal(false, isTypedArray(new Number(42))); assert.equal(false, isTypedArray('foo')); assert.equal(false, isTypedArray(Object('foo'))); assert.equal(false, isTypedArray(function () {})); assert.equal(false, isTypedArray(function* () {})); assert.equal(false, isTypedArray(x => x * x)); assert.equal(false, isTypedArray([])); assert.ok(isTypedArray(new Int8Array())); assert.ok(isTypedArray(new Uint8Array())); assert.ok(isTypedArray(new Uint8ClampedArray())); assert.ok(isTypedArray(new Int16Array())); assert.ok(isTypedArray(new Uint16Array())); assert.ok(isTypedArray(new Int32Array())); assert.ok(isTypedArray(new Uint32Array())); assert.ok(isTypedArray(new Float32Array())); assert.ok(isTypedArray(new Float64Array())); assert.ok(isTypedArray(new BigInt64Array())); assert.ok(isTypedArray(new BigUint64Array())); ``` ## Tests Simply clone the repo, `npm install`, and run `npm test` [package-url]: https://npmjs.org/package/is-typed-array [npm-version-svg]: https://versionbadg.es/inspect-js/is-typed-array.svg [deps-svg]: https://david-dm.org/inspect-js/is-typed-array.svg [deps-url]: https://david-dm.org/inspect-js/is-typed-array [dev-deps-svg]: https://david-dm.org/inspect-js/is-typed-array/dev-status.svg [dev-deps-url]: https://david-dm.org/inspect-js/is-typed-array#info=devDependencies [npm-badge-png]: https://nodei.co/npm/is-typed-array.png?downloads=true&stars=true [license-image]: https://img.shields.io/npm/l/is-typed-array.svg [license-url]: LICENSE [downloads-image]: https://img.shields.io/npm/dm/is-typed-array.svg [downloads-url]: https://npm-stat.com/charts.html?package=is-typed-array [codecov-image]: https://codecov.io/gh/inspect-js/is-typed-array/branch/main/graphs/badge.svg [codecov-url]: https://app.codecov.io/gh/inspect-js/is-typed-array/ [actions-image]: https://img.shields.io/endpoint?url=https://github-actions-badge-u3jn4tfpocch.runkit.sh/inspect-js/is-typed-array [actions-url]: https://github.com/inspect-js/is-typed-array/actions