Constructor JavaScript构造器模式。

var newObject = {};

//var newObject = new Object();

newObject.someKey = ‘Hello World!‘;
var key = newObject.someKey;

newObject[‘someKey‘] = ‘Hello World!!!‘;
Object.defineProperty(newObject, "someKey", {
    value : ‘for more control of the property\‘ behavior ‘,
    writable : true,
    enumerable : true,
    configurable : true
});

var defineProp = function (obj, key, value) {
    config.value = value;
    Object.defineProperty(obj, key, config);
}

var person = Object.create(null);

defineProp(person, ‘car‘, ‘delorean‘);
defineProp(person, ‘dateOfBirth‘, ‘1981‘);
defineProp(person, ‘hasBeard‘, false);

Object.defineProperties(newObject, {
    "someKey" : {
        "value" : "Hello World",
        writable : true
    },

    "anotherKey" : {
        value : "Foo bar",
        writable : false
    }
});