is-boolean-object
DefinitelyTyped icon, indicating that this package has TypeScript declarations provided by the separate @types/is-boolean-object package

1.1.2 • Public • Published

is-boolean-object Version Badge

github actions coverage dependency status dev dependency status License Downloads

npm badge

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

Package Sidebar

Install

npm i is-boolean-object

Weekly Downloads

28,800,704

Version

1.1.2

License

MIT

Unpacked Size

22.1 kB

Total Files

11

Last publish

Collaborators

  • ljharb