Control flow syntax is available from Angular v17. The new syntax is baked into the template, so you don't need to import CommonModule anymore.
This schematic migrates all existing code in your application to use new Control Flow Syntax.
Run the schematic using the following command:
ng generate @angular/core:control-flowBreaking changes
@for view reuse
Using @for block if a property used in the track expression changes but the object reference remains the same (in-place modification), Angular updates the view's bindings (including component inputs) instead of destroying and recreating the element.
This differs from *ngFor, which would execute a remount (destroy and recreate) of the element in a similar scenario if the trackBy function returned a different value.