double semicolon

[Sumit Malik]

Hi guys,

I was going through the DHTML page and there ive come around with double semicolon at the end of the statement in javascript.
What do you understand by double semicolon in javascript ???

Thanks,
Sumit Malik

[Eric Pascarello]

because someone fat fingered a line, JavaScript will not through an error fo that.

Eric

[Kai Witte]

hello,

all languages that are similar to c (c++, Java, JavaScript, ...) allow a semicolon in many places which does not change the semantics of the code. The grammar would look less elegant if it would disallow that. This Java program for example is perfectly valid:

public class Test { ;;;; }

In c for example a statement can consist of a single expression followed by a semicolon, and the expression in that is optional:

statement: ... expression? ";" | ...

Kai