inspect-js / is-data-view

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.

is-data-view

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

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

is-data-view's Issues

Dependency Dashboard

This issue lists Renovate updates and detected dependencies. Read the Dependency Dashboard docs to learn more.

Pending Approval

These branches will be created by Renovate only once you click their checkbox below.

• [Deps] Update Update eslint to v8.57.0
• [Deps] Update Update eslint to v9
• [Deps] Update Update nyc to v17
• 🔐 Create all pending approval PRs at once 🔐

Detected dependencies

github-actions

.github/workflows/node-aught.yml

.github/workflows/node-pretest.yml

.github/workflows/node-tens.yml

.github/workflows/rebase.yml

.github/workflows/require-allow-edits.yml

npm

package.json

• is-typed-array ^1.1.13
• @ljharb/eslint-config ^21.1.0
• @ljharb/tsconfig ^0.2.0
• @types/call-bind ^1.0.5
• @types/es-value-fixtures ^1.4.4
• @types/for-each ^0.3.3
• @types/make-arrow-function ^1.2.2
• @types/make-generator-function ^2.0.3
• @types/node ^20.11.25
• @types/object-inspect ^1.8.4
• @types/tape ^5.6.4
• aud ^2.0.4
• auto-changelog ^2.4.0
• available-typed-arrays ^1.0.7
• es-value-fixtures ^1.4.2
• eslint =8.8.0
• evalmd ^0.0.19
• for-each ^0.3.3
• has-tostringtag ^1.0.2
• in-publish ^2.0.1
• make-arrow-function ^1.2.0
• make-generator-function ^2.0.0
• npmignore ^0.3.1
• nyc ^10.3.2
• object-inspect ^1.13.1
• safe-publish-latest ^2.0.0
• tape ^5.7.5
• node >= 0.4

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