Does it support field validation with error message?

[yumei]

It seems not support data validation with error message. For example, my json data has a collection of metadata for validation rules such as required, length range, number range, regex. How is it easily modified to support validation to display error message?

[danhunsaker]

The same way you would any Angular project. The validation rules themselves are already directly supported, to the extent that HTML5 and core Angular define them. Neither natively supports error message display, so you'd have to use another module anyway - rather than choose one or implement my own, I opted to allow developers to make their own choices about which implementation to use. That way they can keep using whatever they're comfortable with.