Configures number formatting. Allows to specify number of decimals, decimal point and thousands separators with the single format pattern.
number.setTextFormat(pattern);
pattern (string) - text format
var number = new AW.Formats.Number;
number.setTextFormat("USD #,###.##");
setTextFormat() method requires the decimal separator in the formatting pattern so if you need zero decimals - use #. or #,###. (dot at the end).