<!DOCTYPE html>
<html>

  <head>
    <base href="." />
    <title>angular 5 + flex layout</title>
     <!-- polyfill(s) for older browsers -->
    <script src="https://unpkg.com/core-js/client/shim.min.js"></script>

    <script src="https://unpkg.com/zone.js@0.8.16?main=browser"></script>
    <!--<script src="https://unpkg.com/reflect-metadata@0.1.10"></script>-->
    <script src="https://unpkg.com/systemjs@0.20.18/dist/system.src.js"></script>
    <script src="https://unpkg.com/web-animations-js@2.3.1"></script>
  

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

  <body>
    <my-app>
    loading...
  </my-app>
  </body>

</html>
//our root app component
import { Component, NgModule, VERSION} from '@angular/core'
import { BrowserModule} from '@angular/platform-browser'

@Component({
  selector: 'my-app',
  template: `
   
    <div>Click the buttons below to change the text</div>
    <div style="padding: 10px 0;">
      <span class="button" (click)="setString('Hello World')">Hello World</span>
      <span class="button" (click)="setString('Writing pipes is fun! 😒')">Writing pipes is fun!</span>
      <span class="button" (click)="setString('Im a crazy hacker who is stealing your computer')">Im a crazy hacker who is stealing your computer</span>
    </div>
    <div>{{value | naturalType:25}}</div>
  `,
  styles: [`
    .button { 
        padding: 5px;
        width: 140px;
        border: 1px solid black; 
        cursor: pointer;
        box-sizing: border-box;
    }`],
})
export class AppComponent {
  public value: string = 'Hello World';
  
  public setString(value: string) {
    this.value = value;
  }
}
import { NgModule } from '@angular/core';
import { FormsModule } from '@angular/forms';
import { BrowserModule } from '@angular/platform-browser';
import { BrowserAnimationsModule } from '@angular/platform-browser/animations';
import { AppComponent } from './app.component';
import { NaturalType } from './naturaltype.pipe';

@NgModule({
    imports: [
        BrowserModule,
        BrowserAnimationsModule,
        FormsModule,
    ],
    declarations: [
        AppComponent,
        NaturalType,
    ],
    providers: [
      
    ],
    bootstrap: [AppComponent]
})
export class AppModule { }
(function (global) {
  var angVer = '5.0.0-beta.6';
 
  System.config({
    transpiler: 'ts',
    typescriptOptions: {
      "emitDecoratorMetadata": true,
      "experimentalDecorators": true,
      "lib": [ "es2015", "dom" ],
      "module": "commonjs",
      "moduleResolution": "node",
      "noImplicitAny": true,
      "sourceMap": true,
      "suppressImplicitAnyIndexErrors": true,
      "target": "es5"
    },
    meta: {
      'typescript': {
        "exports": "ts"
      }
    },
    paths: { 
      'npm:': 'https://unpkg.com/',
      'gh:': 'https://raw.githubusercontent.com/'
    },
    map: {
      "app": "app",
      "rxjs": "npm:rxjs@5.4.3",
      "ts": "npm:plugin-typescript@7.1.0/lib/plugin.js",
      "typescript": "npm:typescript@2.4.2/lib/typescript.js",
      "@angular/core": "npm:@angular/core@" + angVer + "/bundles/core.umd.js",
      "@angular/common": "npm:@angular/common@" + angVer + "/bundles/common.umd.js",
      "@angular/compiler": "npm:@angular/compiler@" + angVer + "/bundles/compiler.umd.js",
      "@angular/platform-browser": "npm:@angular/platform-browser@" + angVer + "/bundles/platform-browser.umd.js",
      "@angular/platform-browser-dynamic": "npm:@angular/platform-browser-dynamic@" + angVer + "/bundles/platform-browser-dynamic.umd.js",
      "@angular/http": "npm:@angular/http@" + angVer + "/bundles/http.umd.js",
      "@angular/router": "npm:@angular/router@" + angVer + "/bundles/router.umd.js",
      "@angular/forms": "npm:@angular/forms@" + angVer + "/bundles/forms.umd.js",
      "@angular/animations": "npm:@angular/animations@" + angVer + "/bundles/animations.umd.js",
      "@angular/animations/browser": "npm:@angular/animations@" + angVer + "/bundles/animations-browser.umd.js",
      "@angular/platform-browser/animations": "npm:@angular/platform-browser@" + angVer + "/bundles/platform-browser-animations.umd.js",
      "@angular/flex-layout": "npm:@angular/flex-layout@2.0.0-beta.9"
},
    // 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'
      }
    }
  });

  if (!global.noBootstrap) { bootstrap(); }

  // Bootstrap the `AppModule`(skip the `app/main.ts` that normally does this)
  function bootstrap() {

    // Stub out `app/main.ts` so System.import('app') doesn't fail if called in the index.html
    System.set(System.normalizeSync('app/main.ts'), System.newModule({ }));

    // bootstrap and launch the app (equivalent to standard main.ts)
    Promise.all([
      System.import('@angular/platform-browser-dynamic'),
      System.import('app/app.module')
    ])
    .then(function (imports) {
      var platform = imports[0];
      var app      = imports[1];
      platform.platformBrowserDynamic().bootstrapModule(app.AppModule);
    })
    .catch(function(err){ console.error(err); });
  }
})(this);
import { ChangeDetectorRef, NgZone, Pipe } from '@angular/core';

@Pipe({name: 'naturalType', pure: false})
export class NaturalType {
   private typed: string = '';
   private target: string = '';
   private currentIndex: number = -1;
   private timeoutHandle: number = -1;

   constructor(
       private changeDetector: ChangeDetectorRef,
       private zone: NgZone,
   ) {
   }

   transform(value: string, mintypingSpeed: number = 30): any {
      if (this.target !== value) {
       clearTimeout(this.timeoutHandle);
       this.typed = '';
       this.currentIndex = -1;
       this.target = value;
       this.typeNextCharacter(mintypingSpeed);
      }
      return this.typed;
   }
   
   private typeNextCharacter(mintypingSpeed: number) {
    this.currentIndex++;
    this.typed = this.target.substr(0, this.currentIndex);
    this.changeDetector.markForCheck();
    if (this.typed !== this.target) {
      const time = Math.round(Math.random() * 70) + mintypingSpeed;
      this.timeoutHandle = setTimeout(()=> {
        this.zone.run(() => this.typeNextCharacter(mintypingSpeed));
      },time);
    }
   }
}