is-number-object Version Badge

github actions coverage dependency status dev dependency status License Downloads

npm badge

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

Example

```js 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