1. Scroll-bar
2. Text-Editor:
bdc-walkthrough
3.- An Angular Material library for displaying walk-through pop-ups and dialogs using a declarative way.
angular-wijmo-flexsheet
4.OverlayScrollbars
5.Dirty check forms
6.code-prettify
7.- https://github.com/angular/angular/blob/9.1.x/aio/src/app/custom-elements/code/code.component.ts
- https://github.com/angular/angular/blob/9.1.x/aio/src/app/custom-elements/code/pretty-printer.service.ts
8. MathJS
9.Compli template
https://github.com/ngneat/hotkeys
10.- A declarative library for handling hotkeys in Angular applications
changelog-cli
11.Generate a changelog from git metadata