To display current version, we can use VERSION from @angular/core package.
import { Component, VERSION } from '@angular/core';
@Component({
selector: 'my-app',
template: `<h1>Hello {{name}}</h1>
<h2>Current Version: {{ver}}</h2>
`,
})
export class AppComponent {
name = 'Angular2';
ver = VERSION.full;
}