which-typed-array (1.1.19)
Published 2026-02-24 14:08:37 +00:00 by atheaadmin
Installation
registry=npm install which-typed-array@1.1.19"which-typed-array": "1.1.19"About this package
which-typed-array 
Which kind of Typed Array is this JavaScript value? Works cross-realm, without instanceof, and despite Symbol.toStringTag.
Example
var whichTypedArray = require('which-typed-array');
var assert = require('assert');
assert.equal(false, whichTypedArray(undefined));
assert.equal(false, whichTypedArray(null));
assert.equal(false, whichTypedArray(false));
assert.equal(false, whichTypedArray(true));
assert.equal(false, whichTypedArray([]));
assert.equal(false, whichTypedArray({}));
assert.equal(false, whichTypedArray(/a/g));
assert.equal(false, whichTypedArray(new RegExp('a', 'g')));
assert.equal(false, whichTypedArray(new Date()));
assert.equal(false, whichTypedArray(42));
assert.equal(false, whichTypedArray(NaN));
assert.equal(false, whichTypedArray(Infinity));
assert.equal(false, whichTypedArray(new Number(42)));
assert.equal(false, whichTypedArray('foo'));
assert.equal(false, whichTypedArray(Object('foo')));
assert.equal(false, whichTypedArray(function () {}));
assert.equal(false, whichTypedArray(function* () {}));
assert.equal(false, whichTypedArray(x => x * x));
assert.equal(false, whichTypedArray([]));
assert.equal('Int8Array', whichTypedArray(new Int8Array()));
assert.equal('Uint8Array', whichTypedArray(new Uint8Array()));
assert.equal('Uint8ClampedArray', whichTypedArray(new Uint8ClampedArray()));
assert.equal('Int16Array', whichTypedArray(new Int16Array()));
assert.equal('Uint16Array', whichTypedArray(new Uint16Array()));
assert.equal('Int32Array', whichTypedArray(new Int32Array()));
assert.equal('Uint32Array', whichTypedArray(new Uint32Array()));
assert.equal('Float32Array', whichTypedArray(new Float32Array()));
assert.equal('Float64Array', whichTypedArray(new Float64Array()));
assert.equal('BigInt64Array', whichTypedArray(new BigInt64Array()));
assert.equal('BigUint64Array', whichTypedArray(new BigUint64Array()));
Tests
Simply clone the repo, npm install, and run npm test
Dependencies
Dependencies
| ID | Version |
|---|---|
| available-typed-arrays | ^1.0.7 |
| call-bind | ^1.0.8 |
| call-bound | ^1.0.4 |
| for-each | ^0.3.5 |
| get-proto | ^1.0.1 |
| gopd | ^1.2.0 |
| has-tostringtag | ^1.0.2 |
Development Dependencies
| ID | Version |
|---|---|
| @arethetypeswrong/cli | ^0.17.4 |
| @ljharb/eslint-config | ^21.1.1 |
| @ljharb/tsconfig | ^0.3.2 |
| @types/call-bind | ^1.0.5 |
| @types/for-each | ^0.3.3 |
| @types/gopd | ^1.0.3 |
| @types/is-callable | ^1.1.2 |
| @types/make-arrow-function | ^1.2.2 |
| @types/make-generator-function | ^2.0.3 |
| @types/tape | ^5.8.1 |
| auto-changelog | ^2.5.0 |
| encoding | ^0.1.13 |
| eslint | =8.8.0 |
| in-publish | ^2.0.1 |
| is-callable | ^1.2.7 |
| make-arrow-function | ^1.2.0 |
| make-generator-function | ^2.0.0 |
| npmignore | ^0.3.1 |
| nyc | ^10.3.2 |
| safe-publish-latest | ^2.0.0 |
| tape | ^5.9.0 |
| typescript | next |
Keywords
array
TypedArray
typed array
which
typed
Int8Array
Uint8Array
Uint8ClampedArray
Int16Array
Uint16Array
Int32Array
Uint32Array
Float32Array
Float64Array
ES6
toStringTag
Symbol.toStringTag
@@toStringTag
