js计算总页数

//"总条数"：rowCount，"每页总条数"：pageSize
pageTotal(rowCount, pageSize) {  
       if (rowCount == null || rowCount == "") {
             return 0;
       } else {
             if (pageSize != 0 && rowCount % pageSize == 0) {
                    return parseInt(rowCount / pageSize                  
             }
             if (pageSize != 0 && rowCount % pageSize != 0) {
                    return parseInt(rowCount / pageSize) + 1;
             }
        }
},