JavaScript getClass function

gistfile1.js

function getClass(object) {
  return Object.prototype.toString.call(object).match(/^\[object\s(.*)\]$/)[1].toLowerCase();
}

var o =  {'hello':'world'};
console.log(typeof o, getClass(o)); // object, object

var a =  ['hello','world'];
console.log(typeof a, getClass(a)); // object, array

var d = new Date("October 13, 1975 11:13:00");
console.log(typeof d, getClass(d)); // object, date

var n = 56788;
console.log(typeof n, getClass(n)); // number, number

var s = "hello world";
console.log(typeof s, getClass(s)); // string, string

Full explanation at http://javascriptweblog.wordpress.com/2011/08/08/fixing-the-javascript-typeof-operator/