What is the best field validation plugin for Prototype?

问题

Not wanting to re-invent the wheel or anything, I was wondering if there's a plugin out there a field or form validation plugin that works with Prototype that you can recommend from your own experience and why?

回答1:

I like Ben Keen's Really Simple Validation component.

Features I like:

All the validation rules can be kept within javascript so you're not adding class="required" to your HTML code.

You can display error messages in a javascript alert box or with HTML text.

Adding your own extensions is easy.

http://www.benjaminkeen.com/software/rsv/

Note that I've only used the jQuery version, but a Prototype version is also available.

回答2:

I like wforms. Example:

<input type="text" name="myDate" class="validate-date"/>

回答3:

JSValidate

来源：https://stackoverflow.com/questions/265541/what-is-the-best-field-validation-plugin-for-prototype