JSFiddle - React, Tailwind, and code Playground

JavaScript

console.clear();

let  result
	 , price = 234
   , tax = price * 0.05;

function currency(strings, ...values) {
	const regExp = /^:c(\((.+),(.+)\))?/;
  let strings_set = [...strings],
  		values_set = [...values];
  for (let key in values_set) {
    let index = +key+1
      , string = strings_set[index]
      , match = regExp.exec(string);
    if (match === null) continue;
    const [ , , currency, locale] = match;
    strings_set[index] = strings_set[index].replace(regExp, "");
		values_set[key] = values_set[key].toLocaleString(locale, {style: 'currency', currency: currency });
  }
  return String.raw({raw: strings_set}, ...values_set);
}

let message = currency`Товар стоит ${price + tax}:c(UAH,uk-ua), Так то.`;
console.log(message);
message = currency`Товар стоит ${price + tax}:c(JPY,ja-JP), Так то.`;
console.log(message);