Druid web hello world

This is a minimal example of building a single Druid application for the web. To build all the Druid examples for the web, check out the web example directory.

Building

You will need cargo and wasm-pack for building the code and a simple server like http for serving the web page.

First build with.

> wasm-pack build --target web --dev

This generates a JavaScript module that exports the wasm_main function that's been annotated with the #[wasm_bindgen] macro. Leave off the --dev flag if you're doing a release build.

Now run

> http

which should start serving this directory.

Finally, point your browser to the appropriate localhost url (usually http://localhost:8000) and you should see your app.

When you make changes to the project, re-run wasm-pack build --target web --dev and you can see the changes in your browser when you refresh -- no need to restart http.