lib/Map/TableStructure.js
function getIdColumns(idColumnNames, columns) {
  if (!defined(idColumnNames)) {
    return [];
  }
  return idColumnNames.map(name => getColumnWithNameIdOrIndex(name, columns));
}
function getIdColumns(idColumnNames, columns) {
  if (!defined(idColumnNames)) {
    return [];
  }
  return idColumnNames.map(name => getColumnWithNameIdOrIndex(name, columns));
}
function getIdColumns ( idColumnNames , columns ) { if ( ! defined ( idColumnNames ) ) { return [ ] ; } return idColumnNames . map ( name => getColumnWithNameIdOrIndex ( name , columns ) ) ; }
columns is a required parameter.
columns is a required parameter .