Debuter avec GoJS

GoJS
1 
<script src="go-debug.js"></script>
<script src="https://unpkg.com/gojs/release/go-debug.js"></script>
	
<script>
const myDiagram =
	  new go.Diagram("myDiagramDiv",
	    { // enable Ctrl-Z to undo and Ctrl-Y to redo
	      "undoManager.isEnabled": true
	    });

	myDiagram.model = new go.Model(
	  [ // for each object in this Array, the Diagram creates a Node to represent it
	    { key: "Alpha" },
	    { key: "Beta" },
	    { key: "Gamma" }
	  ]);
</script>
------------------------------------------------------------------------------------------------------------------------------------ Mon code ci-dessus ne fonctionne pas ! Comment commencer avec GoJS ? un simple exemple en html qui fonctionne. Merci d'avance
2

Why are you loading the library twice? Delete this line:

<script src="go-debug.js"></script>

Where is the myDiagramDiv HTMLDivElement defined?

3

Hello,
i saw my error. It’s works now. Thank for help.