Euro

// Basic EUR formatting
new Intl.NumberFormat('en-US', {
  style: 'currency',
  currency: 'EUR',
}).format(1234.56);
// → "€1,234.56"

// Minimum/maximum fraction digits
new Intl.NumberFormat('en-US', {
  style: 'currency',
  currency: 'EUR',
  minimumFractionDigits: 2,
  maximumFractionDigits: 2,
}).format(99);
// ISO 4217 minor unit: 2 decimal places

// Stripe / payment API amount
// EUR amount = value × 100
// e.g. $10.00 → amount: 1000