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TJ VanToll is a web developer and jQuery UI team member living in Lansing, MI. He writes about his experiences with jQuery, HTML 5, CSS, and other things that strike his fancy on his blog. He is the proud father of twin sons and when not on the internet he is generally found chasing them in circles.


  • Constraint Validation - Native Client Side Validation for Web Forms
  • Time: Tuesday @ 2:30pm | Room N-121

Validating forms has notoriously been a painful development experience. Implementing client side validation in a user friendly, developer friendly, and accessible way is hard. Before HTML5 there was no means of implementing form validation natively; therefore, developers have resorted to a variety of JavaScript based solutions.

To help ease the burden on developers, HTML5 introduced a concept known as constraint validation - a native means of implementing client side validation on web forms.

This talk will give a comprehensive overview of everything constraint validation offers, discuss the state of browser implementations, and give practical advice for how you can use it in your web forms today.


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