Today I Learned

Javascript supports currency formatting without any library.

Example:

const number = 123456.789;console.log(new Intl.NumberFormat('de-DE', { style: 'currency', currency: 'EUR' }).format(number)); 
// Expected output: "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)); 
// Expected output: "￥123,457"// Limit to three significant digits 
console.log(new Intl.NumberFormat('en-IN', { maximumSignificantDigits: 3 }).format(number)); 
// Expected output: "1,23,000"

The first parameter used is an Intl namespace internationalization.