var n; do { write("Enter number of lines: "); n = read(); } while (n<=0 || isNaN(n)); for (var i=1; i<=n; i++) { for (var k=1; k<=n-i; k++) { write(" "); } for (var j=1; j<=i; j++) { write("*"); } write("\n"); }
(
)
{
}
[
]
"
;
=
+
-
*
!
/
%
&
|