Description
Formats a number according to a format string.
Parameters
Return Type
String
Example
string a = formatNumber(123456.789 ,"###,###.###");
//The pound sign (#) denotes a digit, the comma is a placeholder for the grouping separator, and the period is a placeholder for the decimal separator.
print("a= " + a);
string b = formatNumber(12345.67, "$###,###.###");
print("b= " + b);
string c = formatNumber(123.78, "000000.000");
//The format specifies leading and trailing zeros, because the 0 character is used instead of the pound sign (#).
print("c= " + c);
string d = formatNumber(123456.789, "###.##");
// The number has three digits to the right of the decimal point, but the format has only two. The format method handles this by rounding up.
print("d=" + d);
Prints:
a= 123,456.789
b = $12,345.67
c= 000123.780
d=123456.79
The symbols are described in the following table:
| Symbol | Description |
|---|---|
| 0 | a digit |
| # | a digit, zero shows as absent |
| . | placeholder for decimal separator |
| , | placeholder for grouping separator |
| E | separates mantissa and exponent for exponential formats |
| ; | separates formats |
| - | default negative prefix |
| % | multiply by 100 and show as percentage |
| ? | multiply by 1000 and show as per mille |
| $ | currency sign; replaced by currency symbol; if doubled, replaced by international currency symbol; if present in a pattern, the monetary decimal separator is used instead of the decimal separator |
| X | any other characters can be used in the prefix or suffix |
| ' | used to quote special characters in a prefix or suffix |
See also