| Form model setup |
Created(FormControl instance) in component explicitly |
Created by directives |
| Data updates |
Synchronous |
Asynchronous |
| Form custom validation |
Defined as Functions |
Defined as Directives |
| Testing |
No interaction with change detection cycle |
Need knowledge of the change detection process |
| Mutability |
Immutable(by always returning new value for FormControl instance) |
Mutable(Property always modified to new value) |
| Scalability |
More scalable using low-level APIs |
Less scalable using due to abstraction on APIs |