aurelia-script

aurelia-script

This repo is the home for Aurelia's concatenated script-tag-ready build.

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Getting started with Aurelia Script

Simple examples

In the good old day, you chuck in a script tag into your html and start writing app. Aurelia Script is a way to help you return to that, with Aurelia. Simply add:

  <script src='https://unpkg.com/aurelia-script@1.5.2'></script>

into your main html and you are ready to go, like the following:

	<script>
    au
      .start({
        debug: true,
        // root: 'app.js', // can be ommitted, default is app.js
        // host: document.body // can be ommitted, default is document.body
      })
      .catch(ex => {
        document.body.textContent = `Bootstrap error: ${ex}`;
      })
	</script>

If you want to enhance a section of your page, which is a typical requirement in CMS environment:

	<script>
    au
      .enhance({
        host: document.querySelector('.datepicker')
        // root can be a string, an object or a constructor function
        // aurelia will automatically instantiate if a function is given
        root: class DatePickerViewModel {
          format = 'dd/MM/yyyy'
        },
      });
  </script>

If you want to reuse the same Aurelia instance for multiple enhancements, you can do:

  var aurelia = new au.Aurelia();
  aurelia.start().then(() => {
    // here you are ready to enhance or start a new app
  });

Using aurelia-script with ES5:

For some projects that need to run in ES5, there are 2 dists that can be used: dist/aurelia_no_loader.es5.umd.js and dist/aurelia_router_no_loader.es5.umd.js (or equivalent minified versions). This is great when you just want to use Aurelia for its templating/binding capabilities (progressive enhancement, sub section of a bigger app for example). As their name suggest, there's no loader bundled with them, but you can easily add a loader to fit your need, in case you need to dynamically load a module. Both Requirejs and SystemJS are compatible with ES5 environments to dynamically load modules at runtime. Just make sure you configure Aurelia modules aliases correctly if those modules happen to have a dependencies on one of Aurelia modules.

What is with au:

au is a global namespace for all exports from Aurelia modules, instead of importing from aurelia-framework module. This is because aurelia-script is bundled in UMD module format, to enable simple, old school style usage. For example:

The equivalent of

import { CompositionEngine, ViewCompiler } from 'aurelia-framework';

In Aurelia Script would be:

const { CompositionEngine, ViewCompiler } = au;

With ESM:

There is another distribution bundle that is in ES module format, which you can think of it as a barrel export version of all Aurelia modules in ESM. For example:

The equivalent of

import { BindingEngine, CompositionEngine, ViewCompiler } from 'aurelia-framework';

In Aurelia Script esm distribution would be:

import {
  BindingEngine,
  CompositionEngine,
  ViewCompiler
} from 'https://unpkg.com/aurelia-script@1.5.2/dist/aurelia.esm.min.js';

Online Playground with Single file script

• Codesandbox: https://codesandbox.io/s/wnr6zxv6vl
• Codepen: https://codepen.io/bigopon/pen/MzGLZe
• With Aurelia Store: https://codesandbox.io/s/n3r48qvzjl
• With Aurelia UI Virtualization: https://codesandbox.io/s/m781l8oyqj
• With Aurelia Dialog: https://codesandbox.io/s/62lmyy16xn
• With Aurelia Validation: https://codesandbox.io/s/6y1zzon47r

Development

Build

• Install the dependencies

npm install

• Run either the build / bundle script

# Build only core
npm run build
# Or full build, with router
npm run bundle

Run the example project

• Go to example folder inside this project
• Start a http server
• Navigate to index.html in browser

How it works?

• dist folder contains built result of all aurelia bundles, together with their minified versions, with different scopes:
  • bundles with names ending in .esm.js are in ESM (ECMAScript Module) format. bundles with names ending in .umd.js are in UMD (Universal Module Definition) format.
  • aurelia.esm.js, aurelia.umd.js are bundles without router feature. Typically used when you want to minimized to script included in your page.
  • aurelia_router.esm.js, aurelia_router.umd.js are bundles of with router feature.
• example folder contains an example application to get started. Step to run it included in the section above
• scripts folder contains all built result of all aurelia core modules, in AMD module format for environment like gistrun (https://gist.run)
• build folder contains entry/ setup script, code for building / emiting code to dist and example folders.
  • index.js and index.full.js are custom entries to give rollup instruction how to bundle all core modules. index.js will result in a bundle without router related features. index.full.js will result in a bundle with all features.
  • rollup.config.js is rollup config for running npm run bundle and npm run build scripts

Notes:

aurelia-script uses new ECMAScript feature: dynamic import via import() API. If your target browser does not support such API, aurelia-script won't be able to run. Browser support matrix is at https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Statements/import#Browser_compatibility (check for Dynamic import)