<!DOCTYPE html>
<html>

  <head>
    <link rel="stylesheet" type="text/css" href="styles.css" />
    <meta name="viewport" content="width=device-width, initial-scale=1" />
    <title>Aurelia</title>
  </head>

  <body aurelia-app="">
    <div class="splash">
      <div class="message">Loading...</div>
    </div>
    <script data-require="jspm@0.16.11" data-semver="0.16.11" src="https://jspm.io/system@0.16.11.js"></script>
    <script data-require="Aurelia@0.15.0" data-semver="0.15.0" src="https://cdn.rawgit.com/distros/aurelia/0.15.0/aurelia.js"></script>
    <script src="config.js"></script>
    <script>
      System.import("aurelia-bootstrapper");
    </script>
  </body>

</html>
Aurelia Hello World example.

Fork it to reproduce an bug, or show of a cool feature and communicate 
about it easier with the community.

Version: 0.15.0
export class App 
{
  
  theChildView = './child-view';
  
  constructor(router) 
  {
    this.message = "Hello World!";
  }
}
<template>
  <p>${message}</p>
  
  <compose view-model.bind="theChildView"></compose>
  
</template>
System.config({
  "baseURL": ".",
  "transpiler": "babel",
  "babelOptions": {
    "stage": 0
  },
  "paths": {
    "*": "*.js"
  }
});

System.config({
  "map": {
    "aurelia": "https://rawgit.com/distros/aurelia/0.15.0/aurelia",
    "aurelia-animator-css": "github:aurelia/animator-css@0.3.0",
    "aurelia-bootstrapper": "github:aurelia/bootstrapper@0.13.0",
    "aurelia-dependency-injection": "github:aurelia/dependency-injection@0.8.1",
    "aurelia-framework": "github:aurelia/framework@0.12.0",
    "aurelia-http-client": "github:aurelia/http-client@0.9.1",
    "aurelia-router": "github:aurelia/router@0.9.0",
    "babel": "npm:babel-core@5.4.7",
    "babel-runtime": "npm:babel-runtime@5.4.7",
    "bootstrap": "github:twbs/bootstrap@3.3.4",
    "core-js": "npm:core-js@0.9.15",
    "css": "github:systemjs/plugin-css@0.1.11",
    "font-awesome": "npm:font-awesome@4.3.0",
    "github:aurelia/animator-css@0.3.0": {
      "aurelia-templating": "github:aurelia/templating@0.12.0"
    },
    "github:aurelia/binding@0.7.0": {
      "aurelia-dependency-injection": "github:aurelia/dependency-injection@0.8.1",
      "aurelia-metadata": "github:aurelia/metadata@0.6.0",
      "aurelia-task-queue": "github:aurelia/task-queue@0.5.0",
      "core-js": "npm:core-js@0.9.15"
    },
    "github:aurelia/bootstrapper@0.13.0": {
      "aurelia-event-aggregator": "github:aurelia/event-aggregator@0.5.0",
      "aurelia-framework": "github:aurelia/framework@0.12.0",
      "aurelia-history": "github:aurelia/history@0.5.0",
      "aurelia-history-browser": "github:aurelia/history-browser@0.5.0",
      "aurelia-loader-default": "github:aurelia/loader-default@0.8.0",
      "aurelia-logging-console": "github:aurelia/logging-console@0.5.0",
      "aurelia-router": "github:aurelia/router@0.9.0",
      "aurelia-templating": "github:aurelia/templating@0.12.0",
      "aurelia-templating-binding": "github:aurelia/templating-binding@0.12.0",
      "aurelia-templating-resources": "github:aurelia/templating-resources@0.12.0",
      "aurelia-templating-router": "github:aurelia/templating-router@0.13.0",
      "core-js": "npm:core-js@0.9.15"
    },
    "github:aurelia/dependency-injection@0.8.1": {
      "aurelia-logging": "github:aurelia/logging@0.5.0",
      "aurelia-metadata": "github:aurelia/metadata@0.6.0",
      "core-js": "npm:core-js@0.9.15"
    },
    "github:aurelia/event-aggregator@0.5.0": {
      "aurelia-logging": "github:aurelia/logging@0.5.0"
    },
    "github:aurelia/framework@0.12.0": {
      "aurelia-binding": "github:aurelia/binding@0.7.0",
      "aurelia-dependency-injection": "github:aurelia/dependency-injection@0.8.1",
      "aurelia-loader": "github:aurelia/loader@0.7.0",
      "aurelia-logging": "github:aurelia/logging@0.5.0",
      "aurelia-metadata": "github:aurelia/metadata@0.6.0",
      "aurelia-path": "github:aurelia/path@0.7.0",
      "aurelia-task-queue": "github:aurelia/task-queue@0.5.0",
      "aurelia-templating": "github:aurelia/templating@0.12.0",
      "core-js": "npm:core-js@0.9.15"
    },
    "github:aurelia/history-browser@0.5.0": {
      "aurelia-history": "github:aurelia/history@0.5.0",
      "core-js": "npm:core-js@0.9.15"
    },
    "github:aurelia/http-client@0.9.1": {
      "aurelia-path": "github:aurelia/path@0.7.0",
      "core-js": "npm:core-js@0.9.15"
    },
    "github:aurelia/loader-default@0.8.0": {
      "aurelia-loader": "github:aurelia/loader@0.7.0",
      "aurelia-metadata": "github:aurelia/metadata@0.6.0"
    },
    "github:aurelia/loader@0.7.0": {
      "aurelia-html-template-element": "github:aurelia/html-template-element@0.2.0",
      "aurelia-path": "github:aurelia/path@0.7.0",
      "core-js": "npm:core-js@0.9.15",
      "webcomponentsjs": "github:webcomponents/webcomponentsjs@0.6.3"
    },
    "github:aurelia/metadata@0.6.0": {
      "core-js": "npm:core-js@0.9.15"
    },
    "github:aurelia/route-recognizer@0.5.0": {
      "core-js": "npm:core-js@0.9.15"
    },
    "github:aurelia/router@0.9.0": {
      "aurelia-dependency-injection": "github:aurelia/dependency-injection@0.8.1",
      "aurelia-event-aggregator": "github:aurelia/event-aggregator@0.5.0",
      "aurelia-history": "github:aurelia/history@0.5.0",
      "aurelia-path": "github:aurelia/path@0.7.0",
      "aurelia-route-recognizer": "github:aurelia/route-recognizer@0.5.0",
      "core-js": "npm:core-js@0.9.15"
    },
    "github:aurelia/templating-binding@0.12.0": {
      "aurelia-binding": "github:aurelia/binding@0.7.0",
      "aurelia-logging": "github:aurelia/logging@0.5.0",
      "aurelia-templating": "github:aurelia/templating@0.12.0"
    },
    "github:aurelia/templating-resources@0.12.0": {
      "aurelia-binding": "github:aurelia/binding@0.7.0",
      "aurelia-dependency-injection": "github:aurelia/dependency-injection@0.8.1",
      "aurelia-logging": "github:aurelia/logging@0.5.0",
      "aurelia-task-queue": "github:aurelia/task-queue@0.5.0",
      "aurelia-templating": "github:aurelia/templating@0.12.0",
      "core-js": "npm:core-js@0.9.15"
    },
    "github:aurelia/templating-router@0.13.0": {
      "aurelia-dependency-injection": "github:aurelia/dependency-injection@0.8.1",
      "aurelia-metadata": "github:aurelia/metadata@0.6.0",
      "aurelia-path": "github:aurelia/path@0.7.0",
      "aurelia-router": "github:aurelia/router@0.9.0",
      "aurelia-templating": "github:aurelia/templating@0.12.0"
    },
    "github:aurelia/templating@0.12.0": {
      "aurelia-binding": "github:aurelia/binding@0.7.0",
      "aurelia-dependency-injection": "github:aurelia/dependency-injection@0.8.1",
      "aurelia-html-template-element": "github:aurelia/html-template-element@0.2.0",
      "aurelia-loader": "github:aurelia/loader@0.7.0",
      "aurelia-logging": "github:aurelia/logging@0.5.0",
      "aurelia-metadata": "github:aurelia/metadata@0.6.0",
      "aurelia-path": "github:aurelia/path@0.7.0",
      "aurelia-task-queue": "github:aurelia/task-queue@0.5.0",
      "core-js": "npm:core-js@0.9.15"
    },
    "github:jspm/nodelibs-assert@0.1.0": {
      "assert": "npm:assert@1.3.0"
    },
    "github:jspm/nodelibs-buffer@0.1.0": {
      "buffer": "npm:buffer@3.2.2"
    },
    "github:jspm/nodelibs-events@0.1.1": {
      "events": "npm:events@1.0.2"
    },
    "github:jspm/nodelibs-http@1.7.1": {
      "Base64": "npm:Base64@0.2.1",
      "events": "github:jspm/nodelibs-events@0.1.1",
      "inherits": "npm:inherits@2.0.1",
      "stream": "github:jspm/nodelibs-stream@0.1.0",
      "url": "github:jspm/nodelibs-url@0.1.0",
      "util": "github:jspm/nodelibs-util@0.1.0"
    },
    "github:jspm/nodelibs-https@0.1.0": {
      "https-browserify": "npm:https-browserify@0.0.0"
    },
    "github:jspm/nodelibs-os@0.1.0": {
      "os-browserify": "npm:os-browserify@0.1.2"
    },
    "github:jspm/nodelibs-path@0.1.0": {
      "path-browserify": "npm:path-browserify@0.0.0"
    },
    "github:jspm/nodelibs-process@0.1.1": {
      "process": "npm:process@0.10.1"
    },
    "github:jspm/nodelibs-stream@0.1.0": {
      "stream-browserify": "npm:stream-browserify@1.0.0"
    },
    "github:jspm/nodelibs-url@0.1.0": {
      "url": "npm:url@0.10.3"
    },
    "github:jspm/nodelibs-util@0.1.0": {
      "util": "npm:util@0.10.3"
    },
    "github:systemjs/plugin-css@0.1.11": {
      "clean-css": "npm:clean-css@3.1.9",
      "fs": "github:jspm/nodelibs-fs@0.1.2",
      "path": "github:jspm/nodelibs-path@0.1.0"
    },
    "github:twbs/bootstrap@3.3.4": {
      "jquery": "github:components/jquery@2.1.4"
    },
    "npm:amdefine@0.1.0": {
      "fs": "github:jspm/nodelibs-fs@0.1.2",
      "module": "github:jspm/nodelibs-module@0.1.0",
      "path": "github:jspm/nodelibs-path@0.1.0",
      "process": "github:jspm/nodelibs-process@0.1.1"
    },
    "npm:assert@1.3.0": {
      "util": "npm:util@0.10.3"
    },
    "npm:buffer@3.2.2": {
      "base64-js": "npm:base64-js@0.0.8",
      "ieee754": "npm:ieee754@1.1.5",
      "is-array": "npm:is-array@1.0.1"
    },
    "npm:clean-css@3.1.9": {
      "buffer": "github:jspm/nodelibs-buffer@0.1.0",
      "commander": "npm:commander@2.6.0",
      "fs": "github:jspm/nodelibs-fs@0.1.2",
      "http": "github:jspm/nodelibs-http@1.7.1",
      "https": "github:jspm/nodelibs-https@0.1.0",
      "os": "github:jspm/nodelibs-os@0.1.0",
      "path": "github:jspm/nodelibs-path@0.1.0",
      "process": "github:jspm/nodelibs-process@0.1.1",
      "source-map": "npm:source-map@0.1.43",
      "url": "github:jspm/nodelibs-url@0.1.0",
      "util": "github:jspm/nodelibs-util@0.1.0"
    },
    "npm:commander@2.6.0": {
      "child_process": "github:jspm/nodelibs-child_process@0.1.0",
      "events": "github:jspm/nodelibs-events@0.1.1",
      "path": "github:jspm/nodelibs-path@0.1.0",
      "process": "github:jspm/nodelibs-process@0.1.1"
    },
    "npm:core-js@0.9.15": {
      "fs": "github:jspm/nodelibs-fs@0.1.2",
      "process": "github:jspm/nodelibs-process@0.1.1",
      "systemjs-json": "github:systemjs/plugin-json@0.1.0"
    },
    "npm:core-util-is@1.0.1": {
      "buffer": "github:jspm/nodelibs-buffer@0.1.0"
    },
    "npm:font-awesome@4.3.0": {
      "css": "github:systemjs/plugin-css@0.1.11"
    },
    "npm:https-browserify@0.0.0": {
      "http": "github:jspm/nodelibs-http@1.7.1"
    },
    "npm:inherits@2.0.1": {
      "util": "github:jspm/nodelibs-util@0.1.0"
    },
    "npm:os-browserify@0.1.2": {
      "os": "github:jspm/nodelibs-os@0.1.0"
    },
    "npm:path-browserify@0.0.0": {
      "process": "github:jspm/nodelibs-process@0.1.1"
    },
    "npm:punycode@1.3.2": {
      "process": "github:jspm/nodelibs-process@0.1.1"
    },
    "npm:readable-stream@1.1.13": {
      "buffer": "github:jspm/nodelibs-buffer@0.1.0",
      "core-util-is": "npm:core-util-is@1.0.1",
      "events": "github:jspm/nodelibs-events@0.1.1",
      "inherits": "npm:inherits@2.0.1",
      "isarray": "npm:isarray@0.0.1",
      "process": "github:jspm/nodelibs-process@0.1.1",
      "stream": "github:jspm/nodelibs-stream@0.1.0",
      "stream-browserify": "npm:stream-browserify@1.0.0",
      "string_decoder": "npm:string_decoder@0.10.31",
      "util": "github:jspm/nodelibs-util@0.1.0"
    },
    "npm:source-map@0.1.43": {
      "amdefine": "npm:amdefine@0.1.0",
      "fs": "github:jspm/nodelibs-fs@0.1.2",
      "path": "github:jspm/nodelibs-path@0.1.0",
      "process": "github:jspm/nodelibs-process@0.1.1"
    },
    "npm:stream-browserify@1.0.0": {
      "events": "github:jspm/nodelibs-events@0.1.1",
      "inherits": "npm:inherits@2.0.1",
      "readable-stream": "npm:readable-stream@1.1.13"
    },
    "npm:string_decoder@0.10.31": {
      "buffer": "github:jspm/nodelibs-buffer@0.1.0"
    },
    "npm:url@0.10.3": {
      "assert": "github:jspm/nodelibs-assert@0.1.0",
      "punycode": "npm:punycode@1.3.2",
      "querystring": "npm:querystring@0.2.0",
      "util": "github:jspm/nodelibs-util@0.1.0"
    },
    "npm:util@0.10.3": {
      "inherits": "npm:inherits@2.0.1",
      "process": "github:jspm/nodelibs-process@0.1.1"
    }
  }
});

export class ChildView {
  
  flag = false;
  
  bind(bindingContext) {
    this.flag = bindingContext === this;
  }
}
<template>
  bindingContext === this: ${flag}
</template>