Javascript value equality

getHashCode.js

function getHashCode(obj) {
    var hashCode = 0;
    if (typeof obj === 'object')
        for (var prop in obj) {
            var code = getHashCode(prop) + getHashCode(obj[prop]);
            hashCode += code * code;
        }
    else
        for(var str = "" + obj, i = str.length; i--;)
            hashCode += 100 / (i + str.charCodeAt(i));
    return hashCode;
}

test.js

var someObj = getHashCode({ id: 1, name: 'Pooka', isCat: true }); // 166.3732793411292
var sameObj = getHashCode({ isCat: true, name: 'Pooka', id: 1 }); // 166.3732793411292

if (someObj === sameObj) // true