rails ujs

form.js

  $('#formContainer').html('<form novalidate="novalidate" class="simple_form new_contact" id="new_contact" action="/contacts" accept-charset="UTF-8" data-remote="true" method="post"><input name="utf8" type="hidden" value="✓"><div class="form-inputs"><div class="input string optional contact_type"><label class="string optional" for="contact_type">Type</label><input class="string optional" type="text" name="contact[type]" id="contact_type"></div><div class="input string optional contact_content"><label class="string optional" for="contact_content">Content</label><input class="string optional" type="text" name="contact[content]" id="contact_content"></div><div class="input integer optional contact_user_id"><label class="integer optional" for="contact_user_id">User</label><input class="numeric integer optional" type="number" step="1" name="contact[user_id]" id="contact_user_id"></div></div><div class="form-actions"><input type="submit" name="commit" value="Create Contact" class="btn"></div></form>')

  $('#new_contact').on('ajax:success', function(event, xhr, status, error) {
    $(this).append(xhr.responseText)
  });