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This routine is available starting with SIL Engine™ 2.5.


formatNumber(number, format)


Formats a number according to a format string.


numberNumberYesNumber to be formatted.
formatStringYesString that specifies the format.

Return type

string, the formatted number.


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);


          a= 123,456.789

          b = $12,345.67

          c= 000123.780


The symbols are described in the following table:


0a digit
#a digit, zero shows as absent
.placeholder for decimal separator
,placeholder for grouping separator
Eseparates 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
Xany other characters can be used in the prefix or suffix
'used to quote special characters in a prefix or suffix

See also