Question

在angular2 rc1中，我订阅了路线的更改：

this.router.changes.subscribe(
() => {
    console.log(this.location.path());
});

如何在angular2 rc3中订阅更改路线？ router.changes已经不存在。

Answer 1

constructor(router:Router) {
  router.events.subscribe(event:Event => {
    if(event instanceof NavigationStart) {
    }
    // NavigationEnd
    // NavigationCancel
    // NavigationError
    // RoutesRecognized
  }
}

或

constructor(router:Router) {
  router.events.forEach(event:Event => {

Answer 2

@derived_field(name = "bound_density", units = "g/cm**3")
def _get_ejected_density(field, data):
        E = 0.5* data["cell_mass"]* (data["velx"]**2+data["vely"]**2+data["velz"]**2)+ data["gpot"]*data["cell_mass"]
        return ((np.array(E)<0)*1)*data["density"]

Angular 2 rc3路由器订阅

2 个答案: