Hi everyone,
I've downloaded a sample infobase from the course. I saw many line in the code have no ";" and the code have no syntax error. My question is do we need ";" in a procedure with ony 1 line of code.

Hello Phan Hoàng Anh,

this is such a feature of the current version of the 1C language that in a procedure with one line the symbol ";" not needed. There will be no error in this case.

Also, there will be no error if you don't put the ";" at the end of a multi-line procedure:

Procedure SaveStory(SystemAnswer, Command, MessageID)
   
   RecordManager    = InformationRegisters.MessageHistory.CreateRecordManager();
   
   RecordManager.Period       = CurrentDate();
   RecordManager.Message       = SystemAnswer;
   RecordManager.Command       = Command;
   RecordManager.KindMessage    = Enums.KindsMessage.Outcoming;
   RecordManager.ID_Message    = MessageID;
   
   RecordManager.Write(True)//;
   
EndProcedure

Thanks for your support