Intl.DisplayNames.prototype.of()

const regionNamesInEnglish = new Intl.DisplayNames(['en'], { type: 'region' });
const regionNamesInTraditionalChinese = new Intl.DisplayNames(['zh-Hant'], {
  type: 'region',
});
console.log(regionNamesInEnglish.of('US'));
// Expected output: "United States"
console.log(regionNamesInTraditionalChinese.of('US'));
// Expected output: "美國"

of(code);

let regionNames = new Intl.DisplayNames(["en"], { type: "region" });
regionNames.of("419"); // "Latin America"
let languageNames = new Intl.DisplayNames(["en"], { type: "language" });
languageNames.of("fr"); // "French"
let currencyNames = new Intl.DisplayNames(["en"], { type: "currency" });
currencyNames.of("EUR"); // "Euro"