Function: impliedThreeDecimal()
impliedThreeDecimal(
digits):string|undefined
Apply the NCPDP implied 3-place decimal to an integer digit string, string-wise
(never via float). Returns undefined for non-digit input.
Parameters
digits
string
The verbatim integer string from the wire.
Returns
string | undefined
The value with a 3-place fraction, or undefined if not all digits.
Example
impliedThreeDecimal("30000"); // "30.000"
impliedThreeDecimal("5"); // "0.005"