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This is a playground to test code. It runs a full Node.js environment and already has all of npm’s 1,000,000+ packages pre-installed, including reflect-helper. Try it out:
var reflect = require("reflect-helper");
// declare the EntityAnnotation and FieldAnnotation types
function EntityAnnotation(collection) {
this.collection = collection;
}
function FieldAnnotation() {
}
// create decorators from the types
var Entity = reflect.makeDecorator(EntityAnnotation),
Field = reflect.makeDecorator(FieldAnnotation);
// declare the Person type and decorate it using the Entity and Field decorators
function Person(age) {
this.age = age;
}
reflect.decorate(Person, new Entity("people"), {
age: Field()
});
// get metadata for the Person type
var personType = reflect.getType(Person);
console.log(personType.getAnnotations(EntityAnnotation)[0].collection);
console.log(personType.properties[0].name);
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