GLTF Exporter onCompleted Function Example

Im failing to understand and use the ‘onCompleted’ function after exporting my Scene using the GLTF Exporter. I want to simply call another function after the scene has been Exported. Thank you in Advance

According to the documentation you use the exporter like so;

// Instantiate a exporter
const exporter = new GLTFExporter();

// Parse the input and generate the glTF output
exporter.parse( scene, function ( gltf ) {
	console.log( gltf );
	downloadJSON( gltf );
}, options );

So just put you function call in the above callback.