Get the size of an object and determine if the object has any true values.

ObjectPrototypes.js

Object.prototype.anyValueTrue = function() {
    var key;
    for (var key in this) {
        if (this.hasOwnProperty(key)) {
           if (this[key] === true) {
           		return true;
           }
        }
    }
    return false;
};

Object.prototype.size = function() {
    var size = 0, key;
    for (key in this) {
        if (this.hasOwnProperty(key)) {
        	size++;
        }
    }
    return size;
};

var myObject = {
  'valueOne': false,
  'valueTwo': true,
  'valueThree': false,
  'valueFour': false
};

alert(communicationAndUnderstanding.size());
alert(communicationAndUnderstanding.anyValueTrue());