DataType Utility: DataType.Number.format()
The Number module of the DataType Utility allows you to take a number and format it into a string with the following configuration parameters: decimalPlaces, decimalSeparator, thousandsSeparator, prefix, and suffix.
To output a number as a string, simply call the format() function of the DataType.Number class:
format() function also takes a variety of configuration parameters that manipulate the value of the string. This is helpful, for instance, when displaying numbers as currency: