Angular2-directives Questions

In angular we can use *ngfor in the following way: <li *ngfor="let hero of heroes"> {{ hero }}

I create this directive fot show or hidde label . directive({ selector: '[appuser]' }) export class userdirective {

I am doing a deep dive into how two-way databinding works. i am currently puzzled by how updates from the view (say, an input

I have angular 2 (beta.6) installed using jspm. when i then start my app i get the message of 'reflect-metadata' being required (see also