Google Apps Script utility to Get the string representing a PositionedLayout enum. See https://mogsdad.wordpress.com.

getLayoutString.gs

/**
 * Get the string representing the given PositionedLayout enum.
 * Ref: https://developers.google.com/apps-script/reference/document/positioned-layout
 *
 * From: gist.github.com/mogsdad/7fed0b18837b9027f968
 * See: stackoverflow.com/a/20661113/1677912
 *
 * @param {PositionedLayout} PositionedLayout  Enum value.
 *
 * @returns {String}         English text matching enum.
 */
function getLayoutString( PositionedLayout ) {
  var layout;
  switch ( PositionedLayout ) {
    case DocumentApp.PositionedLayout.ABOVE_TEXT:
      layout = "ABOVE_TEXT";
      break;
    case DocumentApp.PositionedLayout.BREAK_BOTH:
      layout = "BREAK_BOTH";
      break;
    case DocumentApp.PositionedLayout.BREAK_LEFT:
      layout = "BREAK_LEFT";
      break;
    case DocumentApp.PositionedLayout.BREAK_RIGHT:
      layout = "BREAK_RIGHT";
      break;
    case DocumentApp.PositionedLayout.WRAP_TEXT:
      layout = "WRAP_TEXT";
      break;
    default:
      layout = "";
      break;
  }
  return layout;
}