| # is-data-view <sup>[![Version Badge][npm-version-svg]][package-url]</sup> |
| |
| [![github actions][actions-image]][actions-url] |
| [![coverage][codecov-image]][codecov-url] |
| [![License][license-image]][license-url] |
| [![Downloads][downloads-image]][downloads-url] |
| |
| [![npm badge][npm-badge-png]][package-url] |
| |
| Is this value a JS DataView? This module works cross-realm/iframe, does not depend on `instanceof` or mutable properties, and despite ES6 Symbol.toStringTag. |
| |
| ## Example |
| |
| ```js |
| var isDataView = require('is-data-view'); |
| var assert = require('assert'); |
| |
| assert.equal(false, isDataView(undefined)); |
| assert.equal(false, isDataView(null)); |
| assert.equal(false, isDataView(false)); |
| assert.equal(false, isDataView(true)); |
| assert.equal(false, isDataView([])); |
| assert.equal(false, isDataView({})); |
| assert.equal(false, isDataView(/a/g)); |
| assert.equal(false, isDataView(new RegExp('a', 'g'))); |
| assert.equal(false, isDataView(new Date())); |
| assert.equal(false, isDataView(42)); |
| assert.equal(false, isDataView(NaN)); |
| assert.equal(false, isDataView(Infinity)); |
| assert.equal(false, isDataView(new Number(42))); |
| assert.equal(false, isDataView('foo')); |
| assert.equal(false, isDataView(Object('foo'))); |
| assert.equal(false, isDataView(function () {})); |
| assert.equal(false, isDataView(function* () {})); |
| assert.equal(false, isDataView(x => x * x)); |
| assert.equal(false, isDataView([])); |
| assert.equal(false, isDataView(new Int8Array())); |
| assert.equal(false, isDataView(new Uint8Array())); |
| assert.equal(false, isDataView(new Uint8ClampedArray())); |
| assert.equal(false, isDataView(new Int16Array())); |
| assert.equal(false, isDataView(new Uint16Array())); |
| assert.equal(false, isDataView(new Int32Array())); |
| assert.equal(false, isDataView(new Uint32Array())); |
| assert.equal(false, isDataView(new Float32Array())); |
| assert.equal(false, isDataView(new Float64Array())); |
| assert.equal(false, isDataView(new BigInt64Array())); |
| assert.equal(false, isDataView(new BigUint64Array())); |
| |
| assert.ok(isDataView(new DataView(new ArrayBuffer(0)))); |
| ``` |
| |
| ## Tests |
| Simply clone the repo, `npm install`, and run `npm test` |
| |
| [package-url]: https://npmjs.org/package/is-data-view |
| [npm-version-svg]: https://versionbadg.es/inspect-js/is-data-view.svg |
| [deps-svg]: https://david-dm.org/inspect-js/is-data-view.svg |
| [deps-url]: https://david-dm.org/inspect-js/is-data-view |
| [dev-deps-svg]: https://david-dm.org/inspect-js/is-data-view/dev-status.svg |
| [dev-deps-url]: https://david-dm.org/inspect-js/is-data-view#info=devDependencies |
| [npm-badge-png]: https://nodei.co/npm/is-data-view.png?downloads=true&stars=true |
| [license-image]: https://img.shields.io/npm/l/is-data-view.svg |
| [license-url]: LICENSE |
| [downloads-image]: https://img.shields.io/npm/dm/is-data-view.svg |
| [downloads-url]: https://npm-stat.com/charts.html?package=is-data-view |
| [codecov-image]: https://codecov.io/gh/inspect-js/is-data-view/branch/main/graphs/badge.svg |
| [codecov-url]: https://app.codecov.io/gh/inspect-js/is-data-view/ |
| [actions-image]: https://img.shields.io/endpoint?url=https://github-actions-badge-u3jn4tfpocch.runkit.sh/inspect-js/is-data-view |
| [actions-url]: https://github.com/inspect-js/is-data-view/actions |