An unofficial interface for building D2 diagram files in javascript.
npm install d2lang-js import d2 from "d2lang-js"; const umbrella = new d2.D2Shape( "alphabet", "Alphabet Inc", d2.Shape.rectangle ) const company = new d2.D2Shape( "google", "Google", d2.Shape.rectangle ) company.addShape(new d2.D2Shape("gmail", "Gmail", d2.Shape.rectangle)); company.addShape(new d2.D2Shape("meet", "Meet", d2.Shape.rectangle)); company.addShape(new d2.D2Shape("deepmind", "DeepMind", d2.Shape.rectangle)); const connection = new d2.D2Connection(company.name, umbrella.name, "BELONGS_TO", d2.Direction.TO); const diagram = new d2.D2Diagram([umbrella, company],[connection]); console.log(diagram.toString());alphabet: Alphabet Inc { shape: rectangle } google: Google { gmail: Gmail { shape: rectangle } meet: Meet { shape: rectangle } deepmind: Deepmind { shape: rectangle } shape: rectangle } alphabet -> google 
- Shapes (nodes)
- Connections (links)
- Styles
- Containers (nodes/links in nodes)
- Shapes in shapes
- Arrow directions
- Markdown / latex / block strings / code in shapes
- Icons in shapes
- SQL table shapes
- Class shapes
- Comments