Mailchimp AJAX

if (event.detail.contactFormId === '5') {
  var formData = {
    EMAIL: ''
  };

  for (var i = 0; i < event.detail.inputs.length; i++) {
    if (event.detail.inputs[i].name === 'your-email') {
      formData.EMAIL = event.detail.inputs[i].value;
    }

    if (event.detail.inputs[i].name.substring(0,9) === 'bzo_mc_wp') {
      var arr = event.detail.inputs[i].name.split('-');

      var listId = arr[1];

      // JS sign up to the list id.

      jQuery.ajax({
        type: 'POST',
        url: 'https://{{MC_BASE}}&amp;id=' + listId + '&c=?',
        data: formData,
        cache: false,
        dataType: 'jsonp',
        contentType: 'application/json; charset=utf-8',
        error: function(err) {
          console.log(listId + '-ERROR');
        },
        success: function(data) {
          console.log(listId + '-SUCCESS');
        }
      });
    }
  }
}