Create a Site Directory App with Tree Structure to show all the sub-sites created under the root web.

Angular SharePoint

I have created a SharePoint Framework WebPart using AngularJS 1.5.8 (not using TypeScript) which was working fine in workbench.html. However I have noticed that we get intermittent errors and WebPart failed to render when a user does things like refresh. We could reproduce this error in...

SPFX JQuery Angular

If you are not aware of SharePoint Framework, go through this article

SPFX Angular