is-number-object

is-number-object

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

Example

var isNumber = require('is-number-object');
var assert = require('assert');

assert.notOk(isNumber(undefined));
assert.notOk(isNumber(null));
assert.notOk(isNumber(false));
assert.notOk(isNumber(true));
assert.notOk(isNumber('foo'));
assert.notOk(isNumber(function () {}));
assert.notOk(isNumber([]));
assert.notOk(isNumber({}));
assert.notOk(isNumber(/a/g));
assert.notOk(isNumber(new RegExp('a', 'g')));
assert.notOk(isNumber(new Date()));

assert.ok(isNumber(42));
assert.ok(isNumber(NaN));
assert.ok(isNumber(Infinity));
assert.ok(isNumber(new Number(42)));

Tests

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

Changelog

v1.1.0 - 2024-12-01

Commits

• [meta] use npmignore to autogenerate an npmignore file cb8423c
• [New] add types 273e406
• [actions] split out node 10-20, and 20+ 3da6267
• [Robustness] use call-bind 834c098
• [actions] update rebase action to use reusable workflow 84a8a9f
• [Dev Deps] update @ljharb/eslint-config, auto-changelog, core-js, npmignore, tape 7275bca
• [Dev Deps] update eslint, @ljharb/eslint-config, aud, core-js, tape 49a83aa
• [Tests] replace aud with npm audit 061492b
• [Refactor] avoid an expensive check, for null 08d29a8
• [Deps] update has-tostringtag 4e2ad65
• [Dev Deps] add missing peer dep 8228bfa