Download the the /gltf folder from vi-sense/sample-data repository and add it to /public directory.

$ npm install 

$ npm run start

$ npm run build 

export class App {

    #someVariableName;

    constructor() { ... }
}

#someVariableName is a private member variable. The # can also be used to declare a private function.

All static files (images, models, ...) belong to /public. When loading you need to use the absolute path without /public prefix.