HTML5 “placeholder” support

Question

How can I find out if the browser supports the HTML5 placeholder tag, so I can decide whether to hook my jQuery placeholder plugin or not.

Answer 1

If you want to include third party libraries like Modernizr and yepnope.js, it's really easy to test for support and progressively enhance, gracefully degrade.

This is a good article with lots of resources that should help: http://www.sitepoint.com/regressive-enhancement-with-modernizr-and-yepnope/