Have a look for the new Angular programming skills?
Then this is the perfect video for the start:
https://www.youtube.com/channel/UC80PWRj_ZU8Zu0HSMNVwKWw
Then if you intend to build angular forms then the reactive way is the best:
http://jasonwatmore.com/post/2018/11/07/angular-7-reactive-forms-validation-example