JavaScript Para Formatı
https://cevapy.com/901/javascript-para-birimi-format%C4%B1-nas%C4%B1l-ayarlan%C4%B1r
var number = 123456.789;
console.log(new Intl.NumberFormat('de-DE', { style: 'currency', currency: 'EUR' }).format(number));
// "123.456,79 €"
// the Japanese yen doesn't use a minor unit
console.log(new Intl.NumberFormat('ja-JP', { style: 'currency', currency: 'JPY' }).format(number));
// "¥123,457"