is-number/is-number-object.js

'use strict';

var numToStr = Number.prototype.toString;

var toStr = Object.prototype.toString;
var numClass = '[object Number]';
var hasToStringTag = require('has-tostringtag/shams')();

module.exports = function isNumberObject(value) {
	if (typeof value === 'number') {
		return true;
	}
	if (typeof value !== 'object') {
		return false;
	}
	return hasToStringTag ? value instanceof Number : toStr.call(value) === numClass;
};