Angular 2 - Different form controls (final) scotch

import { Component } from '@angular/core';
import { User } from './user.interface';
import { Theme } from './theme.interface';

@Component({
  moduleId: module.id,
  selector: 'my-app',
  templateUrl: 'app.component.html',
})
export class AppComponent {
  public user: User;

  public genders = [
    { value: 'F', display: 'Female' },
    { value: 'M', display: 'Male' }
  ];
  public roles = [
    { value: 'admin', display: 'Administrator' },
    { value: 'guest', display: 'Guest' },
    { value: 'custom', display: 'Custom' }
  ]

  public themes: Theme[] = [
    { backgroundColor: 'black', fontColor: 'white', display: 'Dark' },
    { backgroundColor: 'white', fontColor: 'black', display: 'Light' },
    { backgroundColor: 'grey', fontColor: 'white', display: 'Sleek' }
  ];

  public topics = [
    { value: 'game', display: 'Gaming' },
    { value: 'tech', display: 'Technology' },
    { value: 'life', display: 'Lifestyle' },
  ];

  public toggles = [
    { value: 'toggled', display: 'Toggled' },
    { value: 'untoggled', display: 'UnToggled' },
  ];

  public t = {
    true: { value: 'toggled', display: 'Toggled' },
    false: { value: 'untoggled', display: 'UnToggled' }
  }

  ngOnInit() {
    this.user = {
      name: '',
      gender: this.genders[0].value,
      role: null,
      theme: this.themes[0],
      isActive: false,
      toggle: this.toggles[1].value,
      topics: [this.topics[1].value]
    }
  }

  save(isValid: boolean, f: User) {
    if (!isValid) return;
    console.log(f);
  }
}

import { NgModule }      from '@angular/core';
import { BrowserModule } from '@angular/platform-browser';
import { FormsModule } from '@angular/forms';

import { AppComponent }   from './app.component';

@NgModule({
  imports:      [ BrowserModule, FormsModule ],
  declarations: [ AppComponent ],
  bootstrap:    [ AppComponent ]
})

export class AppModule { }

import { platformBrowserDynamic } from '@angular/platform-browser-dynamic';

import { AppModule } from './app.module';

const platform = platformBrowserDynamic();
platform.bootstrapModule(AppModule);

<!DOCTYPE html>
<html>
  <head>
    <title>Handle different form controls</title>
    <!--optional bootstrap for faster styling-->
    <link rel="stylesheet" href="https://maxcdn.bootstrapcdn.com/bootstrap/3.3.6/css/bootstrap.min.css" integrity="sha384-1q8mTJOASx8j1Au+a5WDVnPi2lkFfwwEAa8hDDdjZlpLegxhjVME1fgjWPGmkzs7" crossorigin="anonymous">

    <meta charset="UTF-8">
    <meta name="viewport" content="width=device-width, initial-scale=1">

    <!-- 1. Load libraries -->
     <!-- Polyfill(s) for older browsers -->
    <script src="https://unpkg.com/core-js/client/shim.min.js"></script>

    <script src="https://unpkg.com/zone.js@0.6.23?main=browser"></script>
    <script src="https://unpkg.com/reflect-metadata@0.1.3"></script>
    <script src="https://unpkg.com/systemjs@0.19.27/dist/system.src.js"></script>

    <!-- 2. Configure SystemJS -->
    <script src="systemjs.config.js"></script>
    <script>
      System.import('app').catch(function(err){ console.error(err); });
    </script>
  </head>

  <!-- 3. Display the application -->
  <body>
    <my-app>Loading...</my-app>
  </body>
</html>

/**
 * PLUNKER VERSION
 * (based on systemjs.config.js in angular.io)
 * System configuration for Angular 2 samples
 * Adjust as necessary for your application needs.
 */
(function (global) {
  System.config({
    // DEMO ONLY! REAL CODE SHOULD NOT TRANSPILE IN THE BROWSER
    transpiler: 'ts',
    typescriptOptions: {
      tsconfig: true
    },
    meta: {
      'typescript': {
        "exports": "ts"
      }
    },
    paths: {
      // paths serve as alias
      'npm:': 'https://unpkg.com/'
    },
    // map tells the System loader where to look for things
    map: {
      // our app is within the app folder
      app: 'app',

      // angular bundles
      '@angular/core': 'npm:@angular/core/bundles/core.umd.js',
      '@angular/common': 'npm:@angular/common/bundles/common.umd.js',
      '@angular/compiler': 'npm:@angular/compiler/bundles/compiler.umd.js',
      '@angular/platform-browser': 'npm:@angular/platform-browser/bundles/platform-browser.umd.js',
      '@angular/platform-browser-dynamic': 'npm:@angular/platform-browser-dynamic/bundles/platform-browser-dynamic.umd.js',
      '@angular/http': 'npm:@angular/http/bundles/http.umd.js',
      '@angular/router': 'npm:@angular/router/bundles/router.umd.js',
      '@angular/forms': 'npm:@angular/forms/bundles/forms.umd.js',
      '@angular/upgrade': 'npm:@angular/upgrade/bundles/upgrade.umd.js',

      // other libraries
      'rxjs':                       'npm:rxjs',
      'angular2-in-memory-web-api': 'npm:angular2-in-memory-web-api',
      'ts':                         'npm:plugin-typescript@4.0.10/lib/plugin.js',
      'typescript':                 'npm:typescript@2.0.2/lib/typescript.js',

    },
    // packages tells the System loader how to load when no filename and/or no extension
    packages: {
      app: {
        main: './main.ts',
        defaultExtension: 'ts'
      },
      rxjs: {
        defaultExtension: 'js'
      },
      'angular2-in-memory-web-api': {
        main: './index.js',
        defaultExtension: 'js'
      }
    }
  });
})(this);

{
  "compilerOptions": {
    "target": "es5",
    "module": "commonjs",
    "moduleResolution": "node",
    "sourceMap": true,
    "emitDecoratorMetadata": true,
    "experimentalDecorators": true,
    "removeComments": false,
    "noImplicitAny": true,
    "suppressImplicitAnyIndexErrors": true
  }
}

export interface Theme {
  display: string;
  backgroundColor: string;
  fontColor: string;
}

export interface User {
  name: string;
  age?: number;
  gender?: string;
  role?: string;
  theme?: ITheme;
  isActive?: boolean;
  topics?: string[];
  toggle?: string;
}

<div class="container">
  <h1>Add user</h1>
  <form #f="ngForm" novalidate>
    <div class="form-group">
      <label>Name</label>
      <input type="text" class="form-control" name="name" [(ngModel)]="user.name">
    </div>
    <div class="form-group">
      <label>Age</label>
      <input type="number" class="form-control" name="age" [(ngModel)]="user.age">
    </div>
    <div class="form-group">
      <label>Gender</label>
      <div class="radio" *ngFor="let gender of genders">
        <label>
          <input type="radio" name="gender" [(ngModel)]="user.gender" [value]="gender.value">
          {{gender.display}}
        </label>
      </div>
    </div>
    <div class="form-group">
      <label>Role</label>
      <select name="role" class="form-control" [(ngModel)]="user.role">
        <option *ngFor="let role of roles" [value]="role.value">{{role.display}}</option>
      </select>
    </div>
    <div class="form-group">
      <label>Theme</label>
      <select name="theme" class="form-control" [(ngModel)]="user.theme">
        <option *ngFor="let theme of themes" [ngValue]="theme">{{theme.display}}</option>
      </select>
    </div>
    <div class="form-group">
      <div class="checkbox">
        <label>
          <input type="checkbox" name="isActive" [(ngModel)]="user.isActive">
          Is Active
        </label>
      </div>
    </div>
    <div class="form-group">
      <label>Topics</label>
      <select multiple name="topics" class="form-control" [(ngModel)]="user.topics">
        <option *ngFor="let topic of topics" [value]="topic.value">{{topic.display}}</option>
      </select>
    </div>
    <div class="form-group">
      <input type="hidden" name="toggle" [(ngModel)]="user.toggle">
      <div class="checkbox">
        <label>
          <input type="checkbox" [checked]="user.toggle === toggles[0].value" 
              (change)="$event.target.checked? (user.toggle = toggles[0].value) : (user.toggle = toggles[1].value)">
          {{ toggles[0].display }}
        </label>
      </div>
    </div>
    <button type="submit" (click)="save(f.value, f.valid)" class="btn btn-default">Submit</button>
  </form>
  <div style="margin-top: 20px" *ngIf="f">
    <div>Form details:-</div>
    <pre>Is form valid?: <br>{{f.valid | json}}</pre>
    <pre>Is form submitted?: <br>{{f.submitted | json}}</pre>
    <pre>submitted value: <br>{{f.value | json}}</pre>
  </div>
</div>