Currency Formatter

Format numbers as currency with locale support.

Uses Intl.NumberFormat for accurate currency formatting with locale and currency support.

currency.tstypescript

export const formatCurrency = (
  amount: number,
  currency: string = 'USD',
  locale: string = 'en-US'
): string => {
  return new Intl.NumberFormat(locale, {
    style: 'currency',
    currency: currency,
    minimumFractionDigits: 2,
    maximumFractionDigits: 2
  }).format(amount);
};

// Usage examples
console.log(formatCurrency(1234.56)); // "$1,234.56"
console.log(formatCurrency(1234.56, 'EUR', 'de-DE')); // "1.234,56 €"
console.log(formatCurrency(1234.56, 'GBP', 'en-GB')); // "£1,234.56"

Usage

const price = formatCurrency(99.99, 'USD');

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