looksGermanfunction

Whether an address is surely German, with no hint: it ends with Germany, Deutschland or a code such as D-10115 before the place, or its last line begins with a postcode and a place (10115 Berlin) while the address has a street that ends in a German suffix (Hauptstraße, Kastanienallee, Am Markt) followed by its number, or a Postfach or a Packstation. A US ZIP code follows its state, a Canadian one ends in a digit and a French street begins with its number and a type of voie, so none of those has that shape.

import { looksGerman } from "@johnmorrisdotca/address-plus/de";

function looksGerman(text: string): boolean

import { looksGerman } from "@johnmorrisdotca/address-plus/de";

console.log([looksGerman("Hauptstraße 12, 10115 Berlin"), looksGerman("123 Main St, Seattle, WA 98101")]);
// → [true,false]

[ true, false ]