Untitled

JavaScript equivalent of PHP passing parameter
do_it( $var2 = 'something_cool' );

function do_it( $var1, $var2 ) {
// does something
}

do_it( var2 = 'something_cool' ); // This isn't right, I don't think.

function do_it( var1, var2 ) {
// does something
}

do_it(null, 'something_cool');

function A(var1, var2)
{
     if (!var2)
          var2 = "default";
}

A(1);

var undefined; // the name doesn't matter actually
do_it(undefined, 'something_cool');