code: function isMultipleArray(valueStr) {
    var wrappedValueStr = '[ ' + valueStr + ' ]';
    var wrappedArray = createArray(wrappedValueStr, {}, {
      checkMultipleArray: false
    });
    return wrappedArray.children.length > 1;
  }
docs: Wrap value in extra array, an it will have multiple children - then it's a multiple array. Make sure not to go recursive.