<!DESCRIPTION> Modifies a number by adding commas after every third digit. For example, 123456789 is converted to 123,456,789. The script example shows this script as used on numbers of various sizes. And, it demonstrates a clever use of the modulus operator.
<!/DESCRIPTION>
<!CATEGORY>Messages<!/CATEGORY>
<!SCRIPT>
<!-- START OF SCRIPT -->
<!-- HOW TO INSTALL ADD COMMAS:
1. Copy code into the HEAD section of document
2. Put last coding into the BODY section of document -->
<!-- STEP ONE: Add code into HEAD section of document -->
<HEAD>
<SCRIPT LANGUAGE="JavaScript">
<!-- Original: Martin Webb -->
<!-- Web Site: http://www.irt.org -->
<!-- Begin
function Comma(number) {
number = '' + number;
if (number.length > 3) {
var mod = number.length % 3;
var output = (mod > 0 ? (number.substring(0,mod)) : '');
for (i=0 ; i < Math.floor(number.length / 3); i++) {
if ((mod == 0) && (i == 0))
output += number.substring(mod+ 3 * i, mod + 3 * i + 3);
else
output+= ',' + number.substring(mod + 3 * i, mod + 3 * i + 3);
}
return (output);
}
else return number;
}
// End -->
</script>
</HEAD>
<!-- STEP TWO: Add code into BODY section of document -->
<BODY>
<SCRIPT LANGUAGE="JavaScript">
<!-- Begin
document.write(Comma(1)+'<BR>');
document.write(Comma(12)+'<BR>');
document.write(Comma(123)+'<BR>');
document.write(Comma(1234)+'<BR>');
document.write(Comma(12345)+'<BR>');
document.write(Comma(123456)+'<BR>');
document.write(Comma(1234567)+'<BR>');
document.write(Comma(12345678)+'<BR>');
document.write(Comma(123456789)+'<BR>');
document.write(Comma(1234567890)+'<BR>');
// End -->
</script>
<!-- END OF SCRIPT -->
<!/SCRIPT>
<!PREVIEW>
<!-- START OF SCRIPT -->
<!-- HOW TO INSTALL ADD COMMAS:
1. Copy code into the HEAD section of document
2. Put last coding into the BODY section of document -->
<!-- STEP ONE: Add code into HEAD section of document -->
<HEAD>
<SCRIPT LANGUAGE="JavaScript">
<!-- Original: Martin Webb -->
<!-- Web Site: http://www.irt.org -->
<!-- Begin
function Comma(number) {
number = '' + number;
if (number.length > 3) {
var mod = number.length % 3;
var output = (mod > 0 ? (number.substring(0,mod)) : '');
for (i=0 ; i < Math.floor(number.length / 3); i++) {
if ((mod == 0) && (i == 0))
output += number.substring(mod+ 3 * i, mod + 3 * i + 3);
else
output+= ',' + number.substring(mod + 3 * i, mod + 3 * i + 3);
}
return (output);
}
else return number;
}
// End -->
</script>
</HEAD>
<!-- STEP TWO: Add code into BODY section of document -->
