Add flow-types

export.flow.js

@@ -0,0 +1,48 @@
+/**
+ * Flowtype definitions for index.ts
+ * Generated by Flowgen from a Typescript Definition
+ * Flowgen v1.8.0
+ * Author: [Joar Wilk](http://twitter.com/joarwilk)
+ * Repo: http://github.com/joarwilk/flowgen
+ */
+
+declare export function diffYears(startDate: Date, endDate: Date): void;
+declare export function isValidDate(
+  date: Date,
+  expectedYear: string,
+  expectedMonth: string,
+  expectedDay: string
+): boolean;
+declare type IDNumberType = "birthNumber" | "DNumber" | "HNumber" | "FHNumber";
+/**
+ * Checks if the given value is a valid Norwegian national identity number.
+ * @returns `true` for valid, and `false` for invalid ID-number.
+ */
+declare export function validateNorwegianIdNumber(idNumber: string): boolean;
+declare export function possibleAgesOfPersonWithIdNumber(
+  elevenDigits: string
+): number[];
+
+/**
+ * Returns the age of a person with given Norwegian national identity number.
+ * Returns `undefined` when birth date could not be determined (e.g. for FH-numbers and invalid ID-numbers).
+ */
+declare export function possibleAgeOfPersonWithIdNumber(
+  elevenDigits: string
+): number | void;
+declare export function idNumberContainsBirthDate(
+  elevenDigits: string
+): boolean;
+declare function possibleBirthDateOfIdNumber(elevenDigits: string): Date | void;
+declare function idNumberType(elevenDigits: string): IDNumberType;
+declare function possibleBirthDateOfBirthNumber(
+  elevenDigits: string
+): Date | void;
+declare function possibleBirthDateOfHNumber(elevenDigits: string): Date | void;
+declare function possibleBirthDateOfDNumber(elevenDigits: string): Date | void;
+declare function getBirthDate(elevenDigitsWithDDMMYY: string): Date | void;
+declare function isValidCheckDigits(elevenDigits: string): boolean;
+declare function isValidCheckDigit(
+  staticSequence: number[],
+  elevenDigits: number[]
+): boolean;

package.json

@@ -5,7 +5,7 @@
   "main": "dist/index.js",
   "types": "dist/index.d.ts",
   "scripts": {
-    "prepare": "npm run build",
+    "prepare": "npm run build && cp export.flow.js dist/index.flow.js",
     "build": "tsc",
     "start": "tsc --watch",
     "test": "jest"