What is the @component means?

Ionic Framework ionic-v3
1 
@Component({

         template: `<button ion-button [navPush]="pushPage" [navParams]="params">Go</button>`,

        selector: 'page-home',

        templateUrl: 'bpjs.html',

})

I have a question about @component:

What is template for?

Also, is selector always begin with page- and ended with the file name? I wonder what is page-home means since the file name is bpjs

but the file works.

2

Really summarized, the selector is the “tag” you would have to use in your templates. Let’s say you have a component selector which is your own calendar called “app-my-calendar” then if you want to use it in your templates you gonna type <app-my-calendar></app-my-calendar>

About definition of the component: https://angular.io/api/core/Component