run the program:
switch(value/{
   case 1:
   print(1);
}

Actual results:
SyntaxError:Unexpected number '1'.Exceptd a ':' following the property name 'case'.

Expected results:
Excepted ')' to end a subject of a 'switch'

The error message told me 'case 1' is wrong while the truth is that I mistakenly entered ‘switch(value)’ as ‘switch(value/’.

It makes it difficult for me to correct this error.I think the error location should in 'switch(value/' rather than 'case 1:' and it should tell me excepted ')' rather than excepted a ':'.