Example usage of the datepicker widget from https://ng-bootstrap.github.io with custom NgbDateParserFormatter

<!DOCTYPE html>
<html>

  <head>
  <base href="." />
    <title>ng-bootstrap demo</title>
    <link rel="stylesheet" href="https://maxcdn.bootstrapcdn.com/bootstrap/4.0.0-alpha.6/css/bootstrap.min.css" />
    <script src="https://unpkg.com/zone.js@^0.6.23/dist/zone.js"></script>
    <script src="https://unpkg.com/zone.js@^0.6.23/dist/long-stack-trace-zone.js"></script>
    <script src="https://unpkg.com/reflect-metadata@^0.1.8/Reflect.js"></script>
    <script src="https://unpkg.com/systemjs@^0.19.40/dist/system.js"></script>
    <script src="config.js"></script>
    <script>
    System.import('app').catch(console.error.bind(console));
</script>
  </head>

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

</html>

var ver = {
    ng: '2.0.0',
    ngRouter: '3.0.0'
  };
  
  System.config({
  //use typescript for compilation
  transpiler: 'typescript',
  //typescript compiler options
  typescriptOptions: {
    emitDecoratorMetadata: true
  },
  paths: {
    'npm:': 'https://unpkg.com/'
  },
  map: {

    'app': './src',

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

    'rxjs': 'npm:rxjs@5.0.0-beta.12',
    'typescript': 'npm:typescript@2.0.10/lib/typescript.js',

    '@ng-bootstrap/ng-bootstrap': 'npm:@ng-bootstrap/ng-bootstrap@1.0.0-alpha.18/bundles/ng-bootstrap.js'
  },
  packages: {
    app: {
      main: './main.ts',
      defaultExtension: 'ts'
    },
    rxjs: {
      defaultExtension: 'js'
    }
  }
});

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

platformBrowserDynamic().bootstrapModule(AppModule);


import { Component, NgModule } from '@angular/core';
import { BrowserModule } from '@angular/platform-browser';
import { FormsModule, ReactiveFormsModule } from '@angular/forms';
import { JsonpModule } from '@angular/http';
import { NgbModule, NgbDateParserFormatter } from '@ng-bootstrap/ng-bootstrap';
import { NgbdDatepickerPopup } from './datepicker-popup';
import { MyNgbDateParserFormatter } from './myNgbDateParserFormatter'

@Component({
  selector: 'my-app',
  template: `
    <div class="container-fluid">
    
    <hr>
    <p>
      This is a demo plnkr forked from the <strong>ng-bootstrap</strong> project: Angular 2 powered Bootstrap.
      Visit <a href="https://ng-bootstrap.github.io/" target="_blank">https://ng-bootstrap.github.io</a> for more widgets and demos.
    </p>
    <hr>

    <ngbd-datepicker-popup></ngbd-datepicker-popup>
  </div>
  `
})
export class App {
}   

@NgModule({
  imports: [BrowserModule, FormsModule, ReactiveFormsModule, JsonpModule, NgbModule.forRoot()], 
  declarations: [App, NgbdDatepickerPopup]
  bootstrap: [App],
  providers: [{provide: NgbDateParserFormatter, useFactory: () => new MyNgbDateParserFormatter('longDate')}]
}) 
export class AppModule {}

import {Component} from '@angular/core';
import { NgbDateParserFormatter } from '@ng-bootstrap/ng-bootstrap';
@Component({
  selector: 'ngbd-datepicker-popup',
  templateUrl: 'src/datepicker-popup.html'
})
export class NgbdDatepickerPopup {
  model;
  constructor(
    private ngbDateParserFormatter: NgbDateParserFormatter
  ) {}
  getServerDate(dateStruct) {
    return this.ngbDateParserFormatter.formatForServer(dateStruct);
  }
}

<form class="form-inline">
  <div class="form-group">
    <div class="input-group">
      <input class="form-control"
             name="dp" [(ngModel)]="model" ngbDatepicker #d="ngbDatepicker">
      <div class="input-group-addon" (click)="d.toggle()" >
        <img src="img/calendar-icon.svg" style="width: 1.2rem; height: 1rem; cursor: pointer;"/>
      </div>
    </div>
  </div>
</form>

<hr/>
<div>Model: <pre>{{ model | json }}</pre></div>
<div>Server Date: {{ getServerDate(model) }}</div>

import { NgbDateParserFormatter, NgbDateStruct } from '@ng-bootstrap/ng-bootstrap';
import { DatePipe } from '@angular/common';

export class MyNgbDateParserFormatter extends NgbDateParserFormatter {
	datePipe = new DatePipe('en-US');
	constructor(
		private dateFormatString: string) {
		super();
	}
	format(date: NgbDateStruct): string {
		if (date === null) {
			return '';
		}
		try {
			return this.datePipe.transform(new Date(date.year, date.month - 1, date.day), this.dateFormatString);
		} catch (e) {
			return '';
		}
	}
	formatForServer(date: NgbDateStruct): string {
		if (date === null) {
			return '';
		}
		try {
			return this.datePipe.transform(new Date(date.year, date.month - 1, date.day), 'y-MM-dd');
		} catch (e) {
			return '';
		}
	}
	parse(value: string): NgbDateStruct {
		let returnVal: NgbDateStruct;
		if (!value) {
			returnVal = null;
		} else {
			try {
				let dateParts = this.datePipe.transform(value, 'M-d-y').split('-');
				returnVal = { year: parseInt(dateParts[2]), month: parseInt(dateParts[0]), day: parseInt(dateParts[1]) };
			} catch (e) {
				returnVal = null;
			}
		}
		return returnVal;
	}
}

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	 viewBox="0 0 34 28" enable-background="new 0 0 34 28" xml:space="preserve">
<g>
	<g>
		<path fill-rule="evenodd" clip-rule="evenodd" fill="#444444" d="M31,0H3C1.3,0,0,1.3,0,3v22c0,1.7,1.3,3,3,3h28c1.7,0,3-1.3,3-3
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</svg>