Javascript: Embed Private Members Into an Object

private-members.js

//reference to: http://code.tutsplus.com/tutorials/javascript-how-to-embed-private-members-into-an-object--cms-24287
var createProperty = function (obj, prop) {
    var currentValue = obj[prop];
    Object.defineProperty(obj, prop, {
        get: function () { return currentValue; },
        set: function (value) {
            currentValue = value;
        },
        enumerable: true,
        configurable: true
    });
}
 
var entity = {
    property: "hello world"
};
 
createProperty(entity, "property");