1. Install yarn: Go to http://yarnpkg.com and follow the instructions for your OS.
2. Install packages:
yarn install
NOTE: Please don't use npm instead of yarn. Without yarn, you aren't guaranteed to be working with the same packages as everyone else.
You're done installing! Now let's get started developing.
4. Start a live-reload development server:
yarn run dev
This is a full web server nicely suited to your project. Any time you make changes within the
src
directory, it will rebuild and even refresh your browser.
5. Testing with mocha
, karma
, chai
, sinon
via phantomjs
:
yarn test
🌟 This also instruments the code in
src/
using isparta, giving you pretty code coverage statistics at the end of your tests! If you want to see detailed coverage information, a full HTML report is placed intocoverage/
.
6. Generate a production build in ./build
:
yarn run build
You can now deploy the contents of the
build
directory to production!
5. Start local production server with serve:
yarn start
This is to simulate a production (CDN) server with gzip. It just serves up the contents of
./build
.
Apps are built up from simple units of functionality called Components. A Component is responsible for rendering a small part of an application, given some input data called props
, generally passed in as attributes in JSX. A component can be as simple as:
class Link extends Component {
render({ to, children }) {
return <a href={ to }>{ children }</a>;
}
}
// usage:
<Link to="/">Home</Link>
This project is set up to support CSS Modules. By default, styles in src/style
are global (not using CSS Modules) to make global declarations, imports and helpers easy to declare. Styles in src/components
are loaded as CSS Modules via Webpack's css-loader. Modular CSS namespaces class names, and when imported into JavaScript returns a mapping of canonical (unmodified) CSS classes to their local (namespaced/suffixed) counterparts.
When imported, this LESS/CSS:
.redText { color:red; }
.blueText { color:blue; }
... returns the following map:
import styles from './style.css';
console.log(styles);
// {
// redText: 'redText_local_9gt72',
// blueText: 'blueText_local_9gt72'
// }
Note that the suffix for local classNames is generated based on an md5 hash of the file. Changing the file changes the hash.
💁 This project contains a basic two-page app with URL routing.
Pages are just regular components that get mounted when you navigate to a certain URL. Any URL parameters get passed to the component as props
.
Defining what component(s) to load for a given URL is easy and declarative. You can even mix-and-match URL parameters and normal props.
<Router>
<A path="/" />
<B path="/b" id="42" />
<C path="/c/:id" />
</Router>
This project includes preact-compat alias in as react
and react-dom
right out-of-the-box. This means you can install and use third-party React components, and they will use Preact automatically! It also means that if you don't install third-party React components, preact-compat
doesn't get included in your JavaScript bundle - it's free if you don't use it 👍
MIT