Angular Generated Tree

<!DOCTYPE html>
<html>

  <head>
    <base href="." />
    <script type="text/javascript" charset="utf-8">
      window.AngularVersionForThisPlunker = 'latest'
    </script>
    <title>angular playground</title>
    <link rel="stylesheet" href="style.css" />
    <script src="https://unpkg.com/core-js@2.4.1/client/shim.min.js"></script>
    <script src="https://unpkg.com/zone.js/dist/zone.js"></script>
    <script src="https://unpkg.com/zone.js/dist/long-stack-trace-zone.js"></script>
    <script src="https://unpkg.com/reflect-metadata@0.1.3/Reflect.js"></script>
    <script src="https://unpkg.com/systemjs@0.19.31/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>

/* Styles go here */

ul.child {
  padding-left: 13px;
}
.child ul {
  padding-left: 26px;
}
.child li {
  white-space: nowrap;
  z-index: 1;
  color: #333;
  list-style-type: none;
  margin: 0;
  padding: 5px 5px 0 7px;
  position: relative;
}
.child li::before,
.child li::after {
  content: '';
  left: -7.5px;
  position: absolute;
  right: auto;
}
.child li::before {
  position: absolute;
  z-index: -1;
  border-left: 1px solid #ccc;
  height: 100%;
  top: 0;
  width: 1px;
}
.child li:last-child::before {
  border-left: 1px solid #ccc;
  top: 0px;
  bottom: 0px;
  width: 1px;
}
.child li::after {
  border-top: 1px solid #ccc;
  top: 15px;
  width: 10px;
}
.child li div {
  display: block;
  position: relative;
  z-index: 10;
  background: #fff;
  display: inline-block;
  padding: 3px 8px;
  white-space: nowrap;
  text-decoration: none;
}
.child li div:last-of-type {
  padding: 3px 20px 3px 8px;
  margin-right: 15px;
}
.child > ul > li::before,
.child > ul > li::after {
  border: 0;
}
.child li:last-child::before {
  height: 15px;
}

### Angular Starter Plunker - Typescript

var angularVersion;
if(window.AngularVersionForThisPlunker === 'latest'){
  angularVersion = ''; //picks up latest
}
else {
  angularVersion = '@' + window.AngularVersionForThisPlunker;
}

System.config({
  //use typescript for compilation
  transpiler: 'typescript',
  //typescript compiler options
  typescriptOptions: {
    emitDecoratorMetadata: true
  },
  paths: {
    'npm:': 'https://unpkg.com/'
  },
  //map tells the System loader where to look for things
  map: {
    
    'app': './src',
    '@angular/core': 'npm:@angular/core'+ angularVersion + '/bundles/core.umd.js',
    '@angular/common': 'npm:@angular/common' + angularVersion + '/bundles/common.umd.js',
    '@angular/compiler': 'npm:@angular/compiler' + angularVersion  + '/bundles/compiler.umd.js',
    '@angular/platform-browser': 'npm:@angular/platform-browser' + angularVersion + '/bundles/platform-browser.umd.js',
    '@angular/platform-browser-dynamic': 'npm:@angular/platform-browser-dynamic' + angularVersion + '/bundles/platform-browser-dynamic.umd.js',
    '@angular/http': 'npm:@angular/http' + angularVersion + '/bundles/http.umd.js',
    '@angular/router': 'npm:@angular/router' + angularVersion +'/bundles/router.umd.js',
    '@angular/forms': 'npm:@angular/forms' + angularVersion + '/bundles/forms.umd.js',
    '@angular/animations': 'npm:@angular/animations' + angularVersion + '/bundles/animations.umd.js',
    '@angular/platform-browser/animations': 'npm:@angular/platform-browser' + angularVersion + '/bundles/platform-browser-animations.umd.js',
    '@angular/animations/browser': 'npm:@angular/animations' + angularVersion + '/bundles/animations-browser.umd.js',
    
    '@angular/core/testing': 'npm:@angular/core' + angularVersion + '/bundles/core-testing.umd.js',
    '@angular/common/testing': 'npm:@angular/common' + angularVersion + '/bundles/common-testing.umd.js',
    '@angular/compiler/testing': 'npm:@angular/compiler' + angularVersion + '/bundles/compiler-testing.umd.js',
    '@angular/platform-browser/testing': 'npm:@angular/platform-browser' + angularVersion + '/bundles/platform-browser-testing.umd.js',
    '@angular/platform-browser-dynamic/testing': 'npm:@angular/platform-browser-dynamic' + angularVersion + '/bundles/platform-browser-dynamic-testing.umd.js',
    '@angular/http/testing': 'npm:@angular/http' + angularVersion + '/bundles/http-testing.umd.js',
    '@angular/router/testing': 'npm:@angular/router' + angularVersion + '/bundles/router-testing.umd.js',
    'tslib': 'npm:tslib@1.6.1',
    'rxjs': 'npm:rxjs',
    'typescript': 'npm:typescript@2.2.1/lib/typescript.js'
  },
  //packages defines our app package
  packages: {
    app: {
      main: './main.ts',
      defaultExtension: 'ts'
    },
    rxjs: {
      defaultExtension: 'js'
    }
  }
});

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

platformBrowserDynamic().bootstrapModule(AppModule)

//our root app component
import {Component, NgModule, VERSION} from '@angular/core'
import {BrowserModule} from '@angular/platform-browser'
import {Tree} from './tree'

@Component({
  selector: 'my-app',
  template: `
      <my-tree  [children]="tree"></my-tree>
  `,
})
export class App {
  name:string;
  
  public tree: any = [{
    name: "Jack",
    children: [{
      name: "Rob"
      children: [{
        name: "Daniel"
      }]
    }, {
      name: "Joe"
    }]
  },
    {
      name: "Jack"
      children: [{
        name: "Robin"
        children: [{
          name: "Peter"
          children: [{
            name: "Henry"
          }]
        }]
      }]
    }
  ]
  
  constructor() {
  }
}

@NgModule({
  imports: [ BrowserModule ],
  declarations: [ App, Tree ],
  bootstrap: [ App ]
})
export class AppModule {}

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

@Component({
  selector: 'my-tree',
  template: `
  <ul class="child">
      <li *ngFor="let child of children">
        {{child.name}}
        <my-tree *ngIf="child.children" [children]="child.children"></my-tree>
      </li>  
  </ul>
  `,
})
export class Tree {
  
  @Input("children")
  public children;
  
  constructor() {
  }
}