selecting-one-item-using-radio-buttons.html

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<!--
# Selecting One Item from Many using Radio Buttons

Shows the use of radio buttons to select a single item from a small collection
of items.

The snippet binds the `value` attribute of an `<input>` to an item in the
`colors` array.

When you select a radio, the `on-change` action triggers the
`updateSelectedColor` handler, which stores the value of the selected color in
`selectedColor`.

[jsbin](http://jsbin.com/mejude/edit)
-->

<link rel="import" href="../../components/polymer/polymer.html">

<polymer-element name="my-element">
  <template>
    <div on-change="{{updateSelectedColor}}">
      <template repeat="{{color in colors}}">
        <label>{{color}}
          <input type="radio" name="colors" value="{{color}}">
        </label>
      </template>
    </div>
    <div>{{selectedColor}}</div>
  </template>
  <script>
    Polymer({
      colors: ['red', 'green', 'blue'],
      selectedColor: '',
      updateSelectedColor: function(e, detail, sender) {
        this.selectedColor = e.target.value;
      }
    });
  </script>
</polymer-element>