A list of countries with name, currency and info if they're in the EU

index.js

const countries = require('world-countries/countries');
const EU = ["AT","BE","BG","CY","CZ","DE","DK","ES","EE","FI","FR","GB","GR","HR","HU","IE","IT","LT","LU","LV","MT","NL","PL","PT","RO","SK","SI","SE"];

let mapped = countries.map((country) => {
	return {
		cca2: country.cca2,
		ccn3: country.ccn3,
		cca3: country.cca3,
		currency: country.currency,
		name: country.name.common,
		in_eu: EU.indexOf(country.cca2) >= 0
	}
});

thanks for the EU CCA2 list :)