looksFrenchfunction

Whether an address is surely French, with no hint: it ends with France, an overseas department, Monaco or one of the collectivities, or holds CEDEX beside a postcode, or its last line begins with a postcode whose number names a department, a collectivity or Monaco, followed by a commune (75008 Paris), while the address has a French type of voie (rue, avenue, chemin) at the start of a street, a BP, a TSA or a lieu-dit. A US ZIP code follows its state and a Canadian one ends in a digit, so neither is the shape of that last line; a German one has its postcode first too, but its streets end in straße or weg and begin with no French type.

import { looksFrench } from "@johnmorrisdotca/address-plus/fr";

function looksFrench(text: string): boolean

import { looksFrench } from "@johnmorrisdotca/address-plus/fr";

console.log([looksFrench("12 rue de la Paix, 75002 Paris"), looksFrench("123 Main St, Seattle, WA 98101")]);
// → [true,false]

[ true, false ]