Function: isNullFlavor()
isNullFlavor(
value): value is "NI" | "UNK" | "ASKU" | "NASK" | "NAV" | "NA" | "OTH" | "MSK"
Return true when a string is a conforming NullFlavor token.
Parameters
value
string
Returns
value is "NI" | "UNK" | "ASKU" | "NASK" | "NAV" | "NA" | "OTH" | "MSK"
Example
import { isNullFlavor } from "@cosyte/ccda";
isNullFlavor("UNK"); // true
isNullFlavor("nope"); // false