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substringing

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TheConeHead

TheConeHead

Programmer
Joined
Aug 14, 2002
Messages
2,106
Location
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How can I substring a number so that it always show the whole number plus two digits past the decimal? Meaning

1241234.345345 would show as 1241234.34

and

323.34534643 shows as 323.34

Math.Round() is not working so I am trying to substr....

[conehead]
 
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If you don't mind the rounding, you could use toFixed:

Code: 
alert(323.34534643.toFixed(2));

Hope this helps,
Dan

 
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This should handle pretty much all situations (except multiple decimals):
Code: 
<html>
<head>
<script language=javascript>
function returnNumber(str) {
   decLoc = str.indexOf(".");
   if (decLoc == -1) {
      return str + ".00";
   }
   return (str.length == decLoc + 1) ? (str + "00") : (str.length == decLoc + 2) ? (str + "0") : (str.substr(0, decLoc) + "." + str.substr(decLoc + 1, 2));
}
</script>
</head>
<body>
<form name=blahForm>
<input type=text name=blahText>Input the number here<br>
<input type=button value='click me' onclick='alert(returnNumber(blahForm.blahText.value))'>
</form>
</body>
</html>

-kaht

Weaseling out of things is important to learn. It's what separates us from the animals... except the weasel. - Homer Simpson (no, I'm not Homer)
 
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