Re: Formatting Numbers using JavaScript

Here are a couple more I had lying around. I don't know whether I wrote the
second one or picked it up.




function currency(num,currencyFormat){
 file:// currencyFormat = "$";
 num = Math.round(num*100)/100;
 num += "";
 if(num.indexOf(".") != -1){
   num = parseInt(num) + "." + (parseFloat(num) - parseInt(num))*100;
 }else{
   num += ".00"
 }

return (currencyFormat + num);
}


file://
**********************************************************************

function roundTo(num,pow){
  num *= Math.pow(10,pow);
  num = (Math.round(num)/Math.pow(10,pow))+ "" ;
  if(num.indexOf(".") == -1)
    num += "." ;
  while(num.length - num.indexOf(".") - 1 < pow)
    num += "0" ;
  return num ;
}

/* Test */
alert("$ "+roundTo(123.2,2))


----- Original Message -----
From: Cyanide _7 <leo7278(at)hotmail.com>
To: <pbenoit(at)triton-network.com>
Cc: <hwg-languages(at)hwg.org>
Sent: Saturday, March 25, 2000 4:44 PM
Subject: RE: Formatting Numbers using JavaScript


| can't say much for simpler, but here is a shorter version that i wrote
that
| includes commas as well as rounds to the nearest cent:
|
| function format(num){
|   if(isNaN(num))
|     num = 0;
|   var dol = Math.floor(num).toString();
|   var cents = Math.floor((num*100+.5)%100).toString();
|   for (var i = 0; i < Math.floor((dol.length-1)/3)-i; i++)
|     dol = dol.slice(0,-(4*i+3))+','+dol.slice(-(4*i+3));
|   while (cents.length<2)
|     cents += "0";
|   return "$"+dol+"."+cents;
| }
|
| - Cyanide_7
|
| >
| >I wasn't sure where I picked it up, if it was yours then thanks. ;)
| >
| >Lots of server side apps have much simpler solutions, php and cold fusion
| >are two that come to mind.  Maybe one day Netscape, oops mean AOL, will
| >come
| >up with a more elegant solution.  For now I'll just stick with ripping
off
| >David.  ;P
| >
| >Pete
| >
| > > -----Original Message-----
| > > From: David Mintz [SMTP:mambomintz(at)yahoo.com]
| > > Sent: Friday, March 24, 2000 2:17 PM
| > > To: hwg-languages(at)hwg.org
| > > Subject: RE: Formatting Numbers using JavaScript
| > >
| > > Well I'll be! That looks just like one I wrote with my
| > > own hands and offered on the list some months ago. I'm
| > > flattered.  Then someone else -- my apologies, I
| > > forget your name -- proposed one that was more compact
| > > and elegant. Wanna show it to us again? Every so often
| > > we go through this -- how to format a number as
| > > currency in Javascript. HWG oughta have a Javascript
| > > FAQ or something.
| > >
| > > Notice how much easier it is with Perl (-: Yeah I
| > > know, Javascript does it on the client side and it's
| > > mighty fast, but people can disable javascript in
| > > their browsers whereas they can hardly disable Perl on
| > > your server.
| > >
| > > David Mintz
| > > http://www.dmintzweb.com
| > > http://www.panix.com/~dmintz
| > >
| > > --- Peter Benoit <pbenoit(at)triton-network.com> wrote:
| > > > This is how I do it in Javascript:
| > > >
| > > > function format(num) {
| > > > num = eval(num);
| > > > num *= 100;
| > > > num = Math.round(num)/100;
| > > >
| > > > if (num - Math.floor(num) == 0) {
| > > > num = num + ".00";
| > > > } else {
| > > > string = num.toString();
| > > > parts = string.split(".");
| > > > cents = parts[1];
| > > > if (cents.length == 1) {
| > > > num = num + "0";
| > > > }
| > > > }
| > > >
| > > > num = "$" + num;
| > > > return num;
| > > > }
| > > >
| > >
| > >
| > > __________________________________________________
| > > Do You Yahoo!?
| > > Talk to your friends online with Yahoo! Messenger.
| > > http://im.yahoo.com
|
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