function(value) {
      if (!value) {
        return null;
      }
      if (!qx.lang.Type.isArray(value)) {
        return [ value ];
      }
      return value;
    }
function(value) {
      if (!value) {
        return null;
      }
      if (!qx.lang.Type.isArray(value)) {
        return [ value ];
      }
      return value;
    }
function ( value ) { if ( ! value ) { return null ; } if ( ! qx . lang . Type . isArray ( value ) ) { return [ value ] ; } return value ; }
Transforms values to make sure that they are an array (and never null)
Transforms values to make sure that they are an array ( and never null )