1 2<!--- 3 4This README is automatically generated from the comments in these files: 5iron-checked-element-behavior.html 6 7Edit those files, and our readme bot will duplicate them over here! 8Edit this file, and the bot will squash your changes :) 9 10The bot does some handling of markdown. Please file a bug if it does the wrong 11thing! https://github.com/PolymerLabs/tedium/issues 12 13--> 14 15[](https://travis-ci.org/PolymerElements/iron-checked-element-behavior) 16 17_[Demo and API docs](https://elements.polymer-project.org/elements/iron-checked-element-behavior)_ 18 19 20##Polymer.IronCheckedElementBehavior 21 22Use `Polymer.IronCheckedElementBehavior` to implement a custom element 23that has a `checked` property, which can be used for validation if the 24element is also `required`. Element instances implementing this behavior 25will also be registered for use in an `iron-form` element. 26 27 28