What is ChangeDetectionStrategy in Angular2 and when to use OnPush Vs Default?

Question

I happened to see ChangeDetectionStrategy in the ngrx documentation. It uses OnPush.

What is ChangeDetectionStrategy in Angula

Answer 1

I saw a really nice and simple explanation in that link:

http://www.codecompiled.com/change-detection-in-angular-2/

ChangeDetectionStrategy.OnPush: it will update the view only in specific scenarios:
* When some event is fired.
* When value of input changes.

Default mean: Always update the view.