blob: 19a99e4f194c2e61fd11821e2bcaf568a439bdeb [file] [log] [blame]
'use strict';
var toString = Object.prototype.toString
, id = toString.call(1);
module.exports = function (x) {
return ((typeof x === 'number') ||
((x instanceof Number) ||
((typeof x === 'object') && (toString.call(x) === id))));
};