https://medium.com/@hulitw/introduction-mvc-spa-and-ssr-545c941669e9
http://blog.miniasp.com/post/2017/02/05/Setup-proxy-to-backend-in-Angular-CLI.aspx
https://egghead.io/courses/asynchronous-javascript-with-async-await
http://codin.im/2016/09/17/observables-in-angular2-translate/
https://github.com/angular/angularfire2/issues/380
subscription.unsubscribe();
Observable.interval + take(1)
Maybe
Object.assign but sub itme only reference
So JSON.parse(JSON.stringify(theObject))
http://www.sqeeex.com/201605/27.html
{{value}} 和 [property]=‘value’ 变量绑定在Component中,只要在Component中控制变量值改变,dom中就会更新,它是单向的。
(event) 是事件绑定,是单向的,在dom中触发,从而告知Component。
[(ng-model)]或者[(ngModel)] 实现双向绑定, angular1中,我们要实现双向绑定是用ng-model=“xx”,angular2中从用法上来说确实只是多加了两个括号。