System.config({
  "transpiler": "ts",
  "typescriptOptions": {
    "target": "es5",
    "module": "system",
    "moduleResolution": "node",
    "sourceMap": true,
    "emitDecoratorMetadata": true,
    "experimentalDecorators": true,
    "removeComments": false,
    "noImplicitAny": true,
    "suppressImplicitAnyIndexErrors": true
  },
  "bundles": {
    "https://unpkg.com/rxjs-system-bundle@5.5.6/Rx.system.min.js": [
      "rxjs",
      "rxjs/*",
      "rxjs/operator/*",
      "rxjs/operators/*",
      "rxjs/observable/*",
      "rxjs/scheduler/*",
      "rxjs/symbol/*",
      "rxjs/add/operator/*",
      "rxjs/add/observable/*",
      "rxjs/add/observable/dom/*",
      "rxjs/util/*"
    ],
    "https://www.telerik.com/kendo-angular-ui/npm/node_modules/@progress/kendo-drawing/dist/systemjs/kendo-drawing.js": [
      "@progress/kendo-drawing",
      "@progress/kendo-drawing/*"
    ],
    "https://www.telerik.com/kendo-angular-ui/npm/node_modules/@progress/kendo-charts/dist/systemjs/kendo-charts.js": [
      "@progress/kendo-charts"
    ],
    "https://www.telerik.com/kendo-angular-ui/npm/node_modules/@progress/kendo-angular-charts/dist/systemjs/kendo-angular-charts.js": [
      "@progress/kendo-angular-charts"
    ],
    "https://www.telerik.com/kendo-angular-ui/npm/node_modules/@progress/kendo-angular-gauges/dist/systemjs/kendo-angular-gauges.js": [
      "@progress/kendo-angular-gauges"
    ],
    "https://www.telerik.com/kendo-angular-ui/npm/node_modules/@progress/kendo-angular-resize-sensor/dist/systemjs/kendo-angular-resize-sensor.js": [
      "@progress/kendo-angular-resize-sensor"
    ],
    "https://www.telerik.com/kendo-angular-ui/npm/node_modules/@telerik/kendo-intl/dist/systemjs/kendo-intl.js": [
      "@telerik/kendo-intl"
    ],
    "https://www.telerik.com/kendo-angular-ui/npm/node_modules/@progress/kendo-angular-intl/dist/systemjs/kendo-angular-intl.js": [
      "@progress/kendo-angular-intl"
    ]
  },
  "meta": {
    "typescript": {
      "exports": "ts"
    },
    "*.json": {
      "loader": "systemjs-json-plugin"
    }
  },
  "map": {
    "app": "app",
    "systemjs-json-plugin": "https://unpkg.com/systemjs-plugin-json@0.3.0",
    "@telerik": "https://www.telerik.com/kendo-angular-ui/npm/node_modules/@telerik",
    "@progress": "https://www.telerik.com/kendo-angular-ui/npm/node_modules/@progress",
    "cldr-data": "https://www.telerik.com/kendo-angular-ui/npm/node_modules/cldr-data",
    "@angular": "https://unpkg.com/@angular",
    "angular2-in-memory-web-api": "https://unpkg.com/angular2-in-memory-web-api",
    "api-ai-javascript": "https://unpkg.com/api-ai-javascript@2.0.0-beta.21/index.js",
    "marked": "https://unpkg.com/marked@0.3.19/lib/marked.js",
    "hammerjs": "https://unpkg.com/hammerjs@2.0.8",
    "pako": "https://unpkg.com/pako@1.0.5",
    "ts": "https://unpkg.com/plugin-typescript@5.3.3/lib/plugin.js",
    "tslib": "https://unpkg.com/tslib@1.7.1",
    "typescript": "https://unpkg.com/typescript@2.4.2/lib/typescript.js",
    "adaptivecards": "https://unpkg.com/adaptivecards@1.0.0/lib/adaptivecards.js",
    "botframework-directlinejs": "https://unpkg.com/botframework-directlinejs@0.9.15/built/directLine.js",
    "@angular/common/http": "https://unpkg.com/@angular/common@5.2.2/bundles/common-http.umd.js",
    "@angular/platform-browser/animations": "https://unpkg.com/@angular/platform-browser@5.2.2/bundles/platform-browser-animations.umd.js",
    "@angular/animations/browser": "https://unpkg.com/@angular/animations@5.2.2/bundles/animations-browser.umd.js",
    "@angular/common": "https://unpkg.com/@angular/common@5.2.2",
    "@angular/compiler": "https://unpkg.com/@angular/compiler@5.2.2",
    "@angular/forms": "https://unpkg.com/@angular/forms@5.2.2",
    "@angular/core": "https://unpkg.com/@angular/core@5.2.2",
    "@angular/platform-browser": "https://unpkg.com/@angular/platform-browser@5.2.2",
    "@angular/platform-browser-dynamic": "https://unpkg.com/@angular/platform-browser-dynamic@5.2.2",
    "@angular/router": "https://unpkg.com/@angular/router@5.2.2",
    "@angular/upgrade": "https://unpkg.com/@angular/upgrade@5.2.2"
  },
  "packages": {
    "app": {
      "main": "./main.ts",
      "defaultExtension": "ts"
    },
    "rxjs": {
      "defaultExtension": false
    },
    "pako": {
      "defaultExtension": "js",
      "main": "./index.js"
    },
    "@angular/common": {
      "main": "/bundles/common.umd.js"
    },
    "@angular/compiler": {
      "main": "/bundles/compiler.umd.js"
    },
    "@angular/forms": {
      "main": "bundles/forms.umd.js",
      "defaultExtension": "js"
    },
    "@angular/core": {
      "main": "/bundles/core.umd.js"
    },
    "@angular/platform-browser": {
      "main": "/bundles/platform-browser.umd.js"
    },
    "@angular/platform-browser-dynamic": {
      "main": "/bundles/platform-browser-dynamic.umd.js"
    },
    "@angular/router": {
      "main": "/bundles/router.umd.js"
    },
    "@angular/upgrade": {
      "main": "/bundles/upgrade.umd.js"
    },
    "@angular/animations": {
      "main": "/bundles/animations.umd.js"
    },
    "@progress/kendo-angular-buttons": {
      "main": "dist/cdn/js/kendo-angular-buttons.js",
      "defaultExtension": "js"
    },
    "@progress/kendo-angular-l10n": {
      "main": "dist/cdn/js/kendo-angular-l10n.js",
      "defaultExtension": "js"
    },
    "@progress/kendo-angular-inputs": {
      "main": "dist/cdn/js/kendo-angular-inputs.js",
      "defaultExtension": "js"
    },
    "@progress/kendo-angular-dropdowns": {
      "main": "dist/cdn/js/kendo-angular-dropdowns.js",
      "defaultExtension": "js"
    },
    "@progress/kendo-angular-popup": {
      "main": "dist/cdn/js/kendo-angular-popup.js",
      "defaultExtension": "js"
    },
    "@progress/kendo-data-query": {
      "main": "dist/cdn/js/kendo-data-query.js",
      "defaultExtension": "js"
    },
    "@progress/kendo-file-saver": {
      "main": "dist/npm/main.js",
      "defaultExtension": "js"
    },
    "@progress/kendo-angular-conversational-ui": {
      "main": "dist/cdn/js/kendo-angular-conversational-ui.js",
      "defaultExtension": "js"
    },
    "@progress/kendo-angular-dateinputs": {
      "main": "dist/cdn/js/kendo-angular-dateinputs.js",
      "defaultExtension": "js"
    },
    "@progress/kendo-date-math": {
      "main": "dist/cdn/js/kendo-date-math.js",
      "defaultExtension": "js"
    },
    "@progress/kendo-angular-dialog": {
      "main": "dist/cdn/js/kendo-angular-dialog.js",
      "defaultExtension": "js"
    },
    "@progress/kendo-angular-grid": {
      "main": "dist/cdn/js/kendo-angular-grid.js",
      "defaultExtension": "js"
    },
    "@progress/kendo-angular-excel-export": {
      "main": "dist/cdn/js/kendo-angular-excel-export.js",
      "defaultExtension": "js"
    },
    "@progress/kendo-angular-label": {
      "main": "dist/cdn/js/kendo-angular-label.js",
      "defaultExtension": "js"
    },
    "@progress/kendo-angular-layout": {
      "main": "dist/cdn/js/kendo-angular-layout.js",
      "defaultExtension": "js"
    },
    "@progress/kendo-angular-menu": {
      "main": "dist/cdn/js/kendo-angular-menu.js",
      "defaultExtension": "js"
    },
    "@progress/kendo-angular-tooltip": {
      "main": "dist/cdn/js/kendo-angular-tooltip.js",
      "defaultExtension": "js"
    },
    "@progress/kendo-angular-toolbar": {
      "main": "dist/cdn/js/kendo-angular-toolbar.js",
      "defaultExtension": "js"
    },
    "@progress/kendo-angular-ripple": {
      "main": "dist/cdn/js/kendo-angular-ripple.js",
      "defaultExtension": "js"
    },
    "@progress/kendo-angular-scrollview": {
      "main": "dist/cdn/js/kendo-angular-scrollview.js",
      "defaultExtension": "js"
    },
    "@progress/kendo-angular-sortable": {
      "main": "dist/cdn/js/kendo-angular-sortable.js",
      "defaultExtension": "js"
    },
    "@progress/kendo-angular-treeview": {
      "main": "dist/cdn/js/kendo-angular-treeview.js",
      "defaultExtension": "js"
    },
    "@progress/kendo-angular-upload": {
      "main": "dist/cdn/js/kendo-angular-upload.js",
      "defaultExtension": "js"
    },
    "@progress/kendo-angular-pdf-export": {
      "main": "dist/cdn/js/kendo-angular-pdf-export.js",
      "defaultExtension": "js"
    },
    "@progress/kendo-react-inputs": {
      "main": "dist/cdn/js/kendo-react-inputs.js",
      "defaultExtension": "js"
    },
    "@progress/kendo-react-dateinputs": {
      "main": "dist/cdn/js/kendo-react-dateinputs.js",
      "defaultExtension": "js"
    },
    "@progress/kendo-react-popup": {
      "main": "dist/cdn/js/kendo-react-popup.js",
      "defaultExtension": "js"
    },
    "@progress/kendo-angular-intl": {
      "defaultExtension": "js"
    }
  }
});
import { platformBrowserDynamic } from '@angular/platform-browser-dynamic';

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

const platform = platformBrowserDynamic();
platform.bootstrapModule(AppModule);
import { Component, ViewChild } from '@angular/core';
import { ComboBoxComponent } from '@progress/kendo-angular-dropdowns';

import { map } from 'rxjs/operators/map';
@Component({
    selector: 'my-app',
    template: `
    <form #myForm="ngForm">
        <kendo-combobox
            #lastNameComboBox
            name="lastName"
            [allowCustom]="true"
            [data]="persons"
            [textField]="'lastName'"
            [valueField]="'lastName'"
            [valueNormalizer]="valueNormalizer"
            [filterable]="true"
            [(ngModel)]="person"
            (filterChange)="filterLastName($event)"
            (valueChange)="lastNameValueChange($event)"
            required>
                <ng-template kendoComboBoxItemTemplate let-person>
                    <span>{{person.firstName + ' ' + person.lastName}}</span>
                </ng-template>
        </kendo-combobox>
    
        <button type="submit" title="Search" [disabled]="myForm.invalid" class="btn btn-primary">
            Search
        </button>        
    </form>
  `,
})
export class AppComponent {
    persons: Array<{ text: string; value: number }> = [
        { firstName: 'John', lastName: 'Wick' },
        { firstName: 'Jason', lastName: 'Statham' },
        { firstName: 'Chuck', lastName: 'Norris' },
    ];

    @ViewChild('lastNameComboBox') lastNameComboBox: ComboBoxComponent;

    person: Person;

    valueNormalizer = (text: Observable<string>) =>
        text.pipe(
            map((text: string) => {
                return {
                    firstName: '',
                    lastName: text,
                };
            })
        );

    filterLastName(lastName: string) {
        this.lastNameComboBox.blur(); // triggers onChange each time the user types in the input field and updates the form state (search button state)        
        this.lastNameComboBox.focus(); // get the focus back to the input
    }

    lastNameValueChange(person: Person) {
        if (person && !person.lastName) {
            this.person = undefined; // because person object exists and has empty name, this is required to invalidate form state if field is empty
        }
    }
}

export interface Person {
    firstName: string;
    lastName: string;
}
import { NgModule }      from '@angular/core';
import { Component } from '@angular/core';
import { FormsModule } from '@angular/forms';
import { BrowserModule } from '@angular/platform-browser';
import { BrowserAnimationsModule } from '@angular/platform-browser/animations';
import { DropDownsModule } from '@progress/kendo-angular-dropdowns';

import 'hammerjs';

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

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

export class AppModule { }
<!DOCTYPE html>
<html>
  <head>
    <title>Angular 2 QuickStart</title>
    <meta charset="UTF-8">
    <meta name="viewport" content="width=device-width, initial-scale=1">

    <link rel="stylesheet" href="https://maxcdn.bootstrapcdn.com/bootstrap/4.0.0/css/bootstrap.min.css" integrity="sha384-Gn5384xqQ1aoWXA+058RXPxPg6fy4IWvTNh0E263XmFcJlSAwiGgFAW/dAiS6JXm" crossorigin="anonymous">
    <link rel="stylesheet" href="https://www.telerik.com/kendo-angular-ui/npm/node_modules//@progress/kendo-theme-default/dist/all.css" crossorigin="anonymous" />
    <!-- 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@0.8.12/dist/zone.js"></script>
    <script src="https://unpkg.com/reflect-metadata@0.1.3/Reflect.js"></script>
    <script src="https://unpkg.com/systemjs@0.19.27/dist/system.js"></script>

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

    <!-- Example-specific styles -->
    <style>
      body { font-family: "RobotoRegular",Helvetica,Arial,sans-serif; font-size: 14px; margin: 0; }
      my-app { display: block; width: 100%; min-height: 80px; box-sizing: border-box; padding: 30px; }
      my-app > .k-icon.k-i-loading { font-size: 64px; position: absolute; top: 50%; left: 50%; transform: translate(-50%, -50%); }
      .example-wrapper { min-height: 280px; align-content: flex-start; }
      .example-wrapper p, .example-col p { margin: 0 0 10px; }
      .example-wrapper p:first-child, .example-col p:first-child { margin-top: 0; }
      .example-col { display: inline-block; vertical-align: top; padding-right: 20px; padding-bottom: 20px; }
      .example-config { margin: 0 0 20px; padding: 20px; background-color: rgba(0,0,0,.03); border: 1px solid rgba(0,0,0,.08); }
      .event-log { margin: 0; padding: 0; max-height: 100px; overflow-y: auto; list-style-type: none; border: 1px solid rgba(0,0,0,.08); background-color: #fff; }
      .event-log li {margin: 0; padding: .3em; line-height: 1.2em; border-bottom: 1px solid rgba(0,0,0,.08); }
      .event-log li:last-child { margin-bottom: -1px;}
    </style>
  </head>

  <!-- 3. Display the application -->
  <body>
    <my-app>
        <span class="k-icon k-i-loading" style="color: #ff6358"></span>
    </my-app>
    
  </body>
</html>