Accordion Component

Directives :

Directive Selector Description
NgbAccordion ngb-accordion The NgbAccordion directive is a collection of panels. It can assure that only one panel can be opened at a time.
NgbPanel ngb-panel The NgbPanel directive represents an individual panel with the title and collapsible content
NgbPanelTitle ng-template[ngbPanelTitle] This directive should be used to wrap accordion panel titles that need to contain HTML markup or other directives.
NgbPanelContent ng-template[ngbPanelContent] This directive must be used to wrap accordion panel content.

Refer following links for usage:

Type URL
NG-Bootstrap Page https://ng-bootstrap.github.io/#/components/accordion
Bootstrap Page https://getbootstrap.com/docs/4.0/components/collapse/
Template Page https://demos.pixinvent.com/apex-angular-admin-template/demo-1/components/accordion