Angular js operations in Sharepoint

http://www.sharepointpals.com/post/Basics-of-AngularJS-in-SharePoint

https://www.codeproject.com/Articles/1002526/SharePoint-and-Angularjs

http://www.sharepointpals.com/post/How-to-Create-Custom-Service-in-AngularJS-for-CRUD-Operations-on-SharePoint-List