JavaScript · Collections, storage and utilities

Intl.NumberFormat

Locale-aware number, currency and percentage formatting.

javascriptRunnable example javascript course

Syntax

new Intl.NumberFormat(locale, options)

Example

Try it

const price = new Intl.NumberFormat("en-US", { style: "currency", currency: "USD" });
console.log(price.format(49));

Reference pages are the quick answer. The course explains the why, shows the full example and ends with a challenge.