问题
In ASP.NET MVC you can setup client side validations with the data annotations model which is similar to validations in ruby on rails. However there are unobtrusive javascript hooks created that will automatically wire up client side validations on forms. Is there anything like this for Ruby on Rails?
回答1:
I was wondering this just the other day, and I found this awesome blog post about it!
http://sleekd.com/tutorials/jquery-validation-in-ruby-on-rails/
The short answer is yes, and the long answer is in the blogpost!
Andy
回答2:
You can try my ClientSideValidations gem: https://github.com/bcardarella/client_side_validations
And there is Railscast about it: http://railscasts.com/episodes/263-client-side-validations
来源：https://stackoverflow.com/questions/5384506/does-ruby-on-rails-have-client-side-validation-like-asp-net-mvc