Hm, Joozey and Michael, if you love spaces then you should be consequent and use them after every bracket and after tags like "if":
displayNumber( arg, 14, 23 );
if( arg < 10 ) { ...
should consequently be:
displayNumber ( arg, 14, 23 );
if ( arg < 10 ) { ...
I personally think that it does not help and the eye has to move too much to get the info. But I also prefer the pascal style and the "begin, end" commands instead of brackets. It is better readable for a human being.
if a>b then begin
a:=...
end else a:=0;
reads better than:
if (a>b) {
a=...
} else a=0;
But in the end all this does not matter if we can make a job done with each of them