関連ワード:  which is not a data type in javascript    which is not a data type in java    which is not a primitive data type in java    which is not a primitive data type in javascript    which is not a valid data type in java    which is not a valid data type in javascript    which is not a basic data type in java    which one is not a data type in javascript    which is not a valid primitive data type in java    which of these is not a data type in java