Angular - bind public/private properties

Question

I'm doing angular tutorial at angular.io, where I read:

constructor(**public** messageService: MessageService) {}

The messageService property must be public because you're about to bind to it in the template.

Angular only binds to public component properties.

I emphasize public there.

However, if I change public to private there, everything works as before...

So please guide me to place where I can dispel my doubts.

My Angular version: 5.0.0,

Thank you!

Answer 1

This is just a recommendation so that your project is compatible with AOT (Ahead Of Time) type build process. You can see its impact by creating an AOT build with this command:

ng build --prod