Is there an example out there that shows how to create a custom widget for Angular (one which extends the Widget class?) I have been trying to create a custom widget which extends Widget on Angular (6.0) with no success
There is an example in the ArcGIS API for Javascript (Using widgets with AngularJS | ArcGIS API for JavaScript 4.8 ), but it is for AngularJS (1.x).
Take a look at this Github repository with links for Angular 2 and above: jsapi-resources/frameworks/angular at master · Esri/jsapi-resources · GitHub
Did you manage to solve this? Im having the same problem.