title: Rivets.js: When button is clicked, call a function with an argument from a data binding
body: <p>This is so infuriating. It seems like it should be so simple, but I can't find the magic incantation.</p>
  
  <p>Here's the gist of what I need to do:</p>
  
  <pre><code>&lt;div rv-each-thing="data.things"&gt;
    &lt;input type=button value="Click" onclick="abc( {thing} )"&gt;
  &lt;/div&gt;
  </code></pre>
  
  <p>That should illustrate what I need to do. I've tried many different things, but nothing seems to work.</p>