VietMX Staff asked 3 years ago
A @Component requires a view whereas a @Directive does not.
Directives
I liken a @Directive to an Angular 1.0 directive with the option restrict: 'A' (Directives aren’t limited to attribute usage.) Directives add behaviour to an existing DOM element or an existing component instance. One example use case for a directive would be to log a click on an element.
Components
A component, rather than adding/modifying behaviour, actually creates its own view (hierarchy of DOM elements) with attached behaviour. An example use case for this might be a contact card component:
Write a component when you want to create a reusable set of DOM elements of UI with custom behaviour. Write a directive when you want to write reusable behaviour to supplement existing DOM elements.
