Mercurial > urweb
annotate demo/counter.ur @ 1699:3320eba6bad5
Clarify necessity of 'effectful' in the manual
| author | Adam Chlipala <adam@chlipala.net> |
|---|---|
| date | Tue, 13 Mar 2012 13:36:26 -0400 |
| parents | 4359e185d3af |
| children |
| rev | line source |
|---|---|
| adam@1301 | 1 (* Workhorse function, which [main] will call *) |
| adamc@416 | 2 fun counter n = return <xml><body> |
| adamc@416 | 3 Current counter: {[n]}<br/> |
| adamc@416 | 4 <a link={counter (n + 1)}>Increment</a><br/> |
| adamc@416 | 5 <a link={counter (n - 1)}>Decrement</a> |
| adamc@416 | 6 </body></xml> |
| adamc@416 | 7 |
| adamc@416 | 8 fun main () = counter 0 |