Question

I would like to validate my form fields instantly (probably on change event) instead of validating the whole form upon submit. It should look like the Pinterest sign-up form

Which jquery plugin would you recommend for that?

Answer 1

The jQuery validation plugin:

The plugin is written and maintained by Jörn Zaefferer, a member of
the jQuery team, lead developer on the jQuery UI team and maintainer
of QUnit. It was started back in the early days of jQuery in 2006, and
updated and improved since then.

http://bassistance.de/jquery-plugins/jquery-plugin-validation/

Documentation

Demos