Coconut rendering through react-dom.

Selects support React's value:

<select value=$selected onchange=${event -> selected = event.currentTarget.value}>
  <option value="one">One</option>
  <option value="two">Two</option>
</select>

The value prop accepts a string, or an array of strings for multiple selection. coconut.vdom and coconut.html support it the same way, so such templates stay portable (including server side rendering with hydration).