Ur/Web: demo/increment.ur annotate

Destructing local let, to the point where demo compiles

author	Adam Chlipala <adamc@hcoop.net>
date	Thu, 28 May 2009 12:07:05 -0400
parents	a44daa674810
children	ed06e25c70ef

rev	line source
adamc@648	1 sequence seq
adamc@648	2
adamc@648	3 fun increment () = nextval seq
adamc@648	4
adamc@782	5 fun main () =
adamc@648	6 src <- source 0;
adamc@648	7 return <xml><body>
adamc@648	8 <dyn signal={n <- signal src; return <xml>{[n]}</xml>}/>
adamc@648	9 <button value="Update" onclick={n <- increment (); set src n}/>
adamc@648	10 </body></xml>

Mercurial > urweb