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Ravi Gulhane 070be631f6 Laravel 13 May		2026-05-13 16:32:55 +05:30
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README.md

is-boolean-object

Is this value a JS Boolean? This module works cross-realm/iframe, and despite ES6 @@toStringTag.

Example

var isBoolean = require('is-boolean-object');
var assert = require('assert');

assert.notOk(isBoolean(undefined));
assert.notOk(isBoolean(null));
assert.notOk(isBoolean('foo'));
assert.notOk(isBoolean(function () {}));
assert.notOk(isBoolean([]));
assert.notOk(isBoolean({}));
assert.notOk(isBoolean(/a/g));
assert.notOk(isBoolean(new RegExp('a', 'g')));
assert.notOk(isBoolean(new Date()));
assert.notOk(isBoolean(42));
assert.notOk(isBoolean(NaN));
assert.notOk(isBoolean(Infinity));

assert.ok(isBoolean(new Boolean(42)));
assert.ok(isBoolean(false));
assert.ok(isBoolean(Object(false)));
assert.ok(isBoolean(true));
assert.ok(isBoolean(Object(true)));

Tests

Simply clone the repo, npm install, and run npm test