boot.ts

// boot.ts 
import {platformBrowserDynamic} from "@angular/platform-browser-dynamic";
import {enableProdMode} from "@angular/core";
import {AppModule} from "./app.module";
declare var process;
if (process.env.ENV === 'production') {
    enableProdMode();
}
platformBrowserDynamic().bootstrapModule(AppModule);
// app.module.ts
import {NgModule} from "@angular/core";
import {BrowserModule} from "@angular/platform-browser";
// application
import {AppComponent} from "./app.component";
@NgModule({
    imports: [
        BrowserModule
    ],
    declarations: [
        AppComponent
    ],
    bootstrap: [AppComponent]
})
export class AppModule {
}
// app.component.ts
import {Component} from "@angular/core";
@Component({
    selector: 'my-app',
    template: `
        Hello {{ name }}
    `
})
export class AppComponent {
    name: string = "Sean";
    constructor() {
    }
}