const locales1 = ['ban', 'id-u-co-pinyin', 'de-ID'];
const options1 = { localeMatcher: 'lookup' };
console.log(Intl.Collator.supportedLocalesOf(locales1, options1));
// expected output: Array ["id-u-co-pinyin", "de-ID"]
// (Note: the exact output may be browser-dependent)
const locales1 = ['ban', 'id-u-co-pinyin', 'de-ID'];const options1 = { localeMatcher: 'lookup' };console.log(Intl.Collator.supportedLocalesOf(locales1, options1));// expected output: Array ["id-u-co-pinyin", "de-ID"]// (Note: the exact output may be browser-dependent)