Enhancements

• First class TypeScript support
• Asynchronous validation
• Entity validation
• Multiple controllers per view.
• Drop validate.js
• Errors that aren't specific to a particular property/element
• Conditional validation
• Make it easier to define custom rules
• Make it easier to customize error messages / I18N
• Keyed message resources
• Use binding engine to render message templates
• Improve renderer API to make animation scenarios and "success" scenarios possible

Under Consideration

• Enable specifying rules for nested properties: ValidationRules.ensure('foo.bar.baz').required();
• Validation sequencing: add an option or change the standard behavior such that rules specific to a particular property are validated sequentially. The first validation error cancels the remaining validation work for the property. Side-effect: properties would never have more than one error. Benefit: expensive rules could be validated only when everything else is valid.

Known Issues

• & validate does not work with two-way custom attributes because it's unable to locate the associated DOM element.
• Rule property decorators missing. @required, etc

Demos

• Fluent API: ensure, displayName Rules: required, satisfies, min/max-length/items, email, matches Message customization: withMessage, withMessageKey when,
• Replacing default messages

Building

npm run build