title: Remove event target
body: <p>I connect a script with the event handler when the output of the found data occurs. But after I look again for the data, the script connects again and the handler is hung a second time. How can this be avoided?    </p>
  
  <pre><code>$(document).on("click", "a[data-action='create']", function (e) {
      e.preventDefault();
      newContactInput(this);
  });
  </code></pre>