#camp404 "poker chip" code challenge: enter a number, tell the number the minimum number of chips required to represent them

cmp404poka.html

<!-- challenge description:
- a given set of infinite poker chips in theses sizes: 500, 100, 50, 25, 10, 5, 2, 1
- enter a number
- tell the user the minimum number of chips necessary to represent the value
-->

<!-- initial 91 char solution ; thx to @neuling for the inspiration and @johannesnagl saving me one extra char -->
<p onclick="i=prompt();for(a of[500,100,50,25,10,5,2,1])if(e=~~(i/a))alert(e+' '+a,i%=a)">.

<!-- since it wasn't specified that spitting out 0 chips would be prohibited, another solution -->
<!-- 84 chars -->
<p onclick="i=prompt();for(a of[500,100,50,25,10,5,2,1])alert(~~(i/a)+'x'+a),i%=a">.

Tricks used:

• Replaced Math.floor with ~~
• a comma , can be used to separte satements but they're still kind of compounded together hence no need for { and } for the for body
  Interestingly, I used alert(foo ,bar) before: alert ignores bar but it is executed which gave me the calculation