is-typed-array Version Badge
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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.
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()));
Simply clone the repo, npm install, and run npm test