Comment Empty Lines
By default commenting of the code skip empty lines and do not place comment mark on them.
This code:
var a = 1; a = a + 10;
To enable commenting of empty lines too, and getting something like this:
//var a = 1; // //a = a + 10;
add into <Formatting> section settings.xml following key:
<Formatting> <CommentEmptyLines>true</CommentEmptyLines> </Formatting>
#xml_option