<!– @license Copyright © 2015 The Polymer Project Authors. All rights reserved. This code may only be used under the BSD style license found at polymer.github.io/LICENSE.txt The complete set of authors may be found at polymer.github.io/AUTHORS.txt The complete set of contributors may be found at polymer.github.io/CONTRIBUTORS.txt Code distributed by Google as part of the polymer project is also subject to an additional IP rights grant found at polymer.github.io/PATENTS.txt –>

<link rel=“import” href=“../../polymer/polymer.html”> <link rel=“import” href=“../../iron-validator-behavior/iron-validator-behavior.html”>

<script>

Polymer({
  is: 'ssn-validator',

  behaviors: [
    Polymer.IronValidatorBehavior
  ],

  validate: function(value) {
    // this regex validates incomplete ssn's (by design)
    return !value || value.match(/^[0-9]{0,3}-[0-9]{0,2}-[0-9]{0,4}$/);
  }
});

</script>