# Demos

Small Node programs to open in Turbo JS once you have built it. Each directory is a project of its own: start the editor **in** it, so the JavaScript menu's commands run there and the language server finds its `package.json`.

| Directory | What it shows |
| --- | --- |
| `greeter/` | A class with a private field and a regular expression, an ES module importing it, and a `node --test` file beside them. `npm start` greets three times; `npm test` runs the two tests. |

```bash
cd demos/greeter
turbo-js main.js
```

Then `Alt-J` ▸ **Create tools file**, and the menu runs `npm install`, `node --test` and `npm start` from here.