You can not select more than 25 topics
Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.
70 lines
3.1 KiB
70 lines
3.1 KiB
# 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
|