Question

I need to know if double // slashes on the URL comment could produce errors:

function jsFunction(){
    //http://google.com
    var str="...";
}

^{Other than syntax-highlighting-related errors}

Answer 1

// are single line comments, anything after it on the same line will be commented out, even more / characters.

/* is used to begin a multi-line comment. The next */ will end the multi-line comment. This could be an issue if you try comment out a regular expression:

/**
var foo = /.*/g
 */