Gravity Forms add aria-describedby to fields on validation

index.js

jQuery(document).bind('gform_post_render', function(){
  let InvalidFields = document.querySelectorAll('.gform_wrapper *[aria-invalid="true"]');
  let InvalidFieldsArray = Array.from(InvalidFields, (field) => {
    let validationMessages = field.parentElement.parentElement.querySelectorAll('.validation_message');
    let fieldID = field.id;
    let fieldIDArray = [];
    var count = 0;

    let ValidationMessagesArray = Array.from(validationMessages, (message) => {
        if (validationMessages.length > 1){	
          fieldID = fieldID+count++;
          fieldIDArray.push('validation_message-'+fieldID);
        }
        message.setAttribute('id', 'validation_message-'+fieldID);
    });

    if (validationMessages.length > 1){	
      field.setAttribute('aria-describedby', fieldIDArray.join(" "));
    } else {
      field.setAttribute('aria-describedby', 'validation_message-'+fieldID);
    }
  });
});