javascript
test // a java object
// create a new property
test.newProperty = "new Property"
// create a new method
test.newMethod = function () { return "new Method"; }
Object.defineProperty(test, 'defProperty', {
value: "define Property"
});
console.log(test.defProperty);
// define Property
console.log(test.newMethod());
// new Method
console.log(test.newProperty);
// new Property