Format a number as a currency string
Written byPhuoc Nguyen
Created
03 Mar, 2021
Category
Tip
Tags
JavaScript
Given a number, we can format it as a currency string without using an external libary.
The
`NumberFormat` API provides the easy way to format a currency of a given country:js
const formatter = new Intl.NumberFormat('en-US', {
style: 'currency',
currency: 'USD',
minimumFractionDigits: 2,
});The optional
`minimumFractionDigits` parameter indicates the minium number of digits in the fraction part. Calling the `format` function will format the input, and prefix or suffix the currency depending on the country.js
formatter.format(2345); // '$2,345.00'
formatter.format('2345'); // '$2,345.00'
formatter.format('10000000'); // '$10,000,000.00'
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Phước Nguyễn