Assign ID for the field row on SharePoint NewForm/EditForm/DispForm pages (jQuery required)

sp-assignfieldrowid.js

/**
 * sp-assignfieldrowid.js
 *
 * (c) 2018 koohq. Licensed under CC0.
 * https://creativecommons.org/publicdomain/zero/1.0/legalcode
 */

// Promise that indicates assigning ID completed
var formFieldRowIdAssigned;

(function assignFieldRowIdIfSatisfied() {
  var fileName = location.pathname.split('/').pop().toLowerCase();
  switch (fileName) {
    case 'newform.aspx':
    case 'editform.aspx':
      assignFieldRowIdAtEntryForm();
      break;
    case 'dispform.aspx':
      assignFieldRowIdAtViewForm();
      break;
    default:
      break;
  }

  function assignFieldRowIdAtEntryForm() {
    assignFieldRowId('[id*="$"]:first', function resolveBy($element) {
      var fieldId = $element.prop('id');

      // FieldName_GUID_$FieldOrControlType
      var fieldIdRegex = /^(.*)_[a-z0-9]{8}-[a-z0-9]{4}-[a-z0-9]{4}-[a-z0-9]{4}-[a-z0-9]{12}_\$.*$/;
      var fieldNameMatch = fieldId.match(fieldIdRegex);

      return fieldNameMatch === null ? '' : fieldNameMatch[1];
    });
  }

  function assignFieldRowIdAtViewForm() {
    assignFieldRowId('a[name^="SPBookmark_"]', function resolveByBookmark($element) {
      var bookmarkName = $element.prop('name');

      // SPBookmark_FieldName
      var bookmarkNameRegex = /^SPBookmark_(.*)$/;
      var bookmarkNameMatch = bookmarkName.match(bookmarkNameRegex);

      return bookmarkNameMatch === null ? '' : bookmarkNameMatch[1];
    });
  }

  function assignFieldRowId(selector, resolver) {
    formFieldRowIdAssigned = new Promise(function(resolve, reject) {
      ExecuteOrDelayUntilBodyLoaded(function() {
        try {
          $('.ms-formtable > tbody > tr').find(selector).each(function(index, element) {
            var $element = $(element);

            var fieldName = resolver($element);
            if (fieldName === '') { return; }

            var $fieldRow = $element.closest('tr');
            if ($fieldRow.prop('id') !== '') { return; }

            // idFieldNameRow
            var fieldRowId = String.format('id{0}Row', fieldName);
            $fieldRow.prop('id', fieldRowId);
          });
          resolve();
        } catch (e) {
          reject();
        }
      });
    });
  }
})();

sp-assignfieldrowid.usage.js

/**
 * sp-assignfieldrowid.usage.js
 *
 * (c) 2018 koohq. Licensed under CC0.
 * https://creativecommons.org/publicdomain/zero/1.0/legalcode
 */

// dummy
var $titleRow;

/** DispFrom **/
// before
$(function() {
  $titleRow = $('.ms-formlabel').find('a[name$="Title"]').closest('tr');
});
// after
formFieldRowIdAssigned.then(function() {
  $titleRow = $('#idTitleRow');
});

/** NewForm/EditFrom **/
// before
$(function() {
  $titleRow = $('.ms-formbody').find('[id^="Title"]').closest('tr');
});
// after
formFieldRowIdAssigned.then(function() {
  $titleRow = $('#idTitleRow');
});