Does JavaScript support formatting numbers by string format?

Question

In .NET I can format number by this code:

Dim num = 1234567.8933
Dim res = num.ToString("#,##0.00")

Result: res= 1,234,567.89

I want using this format "#,##0.00" in JavaScript. Does it support formatting numbers by string format?

Answer 1

Does it support formatting numbers by string format?

We don't have built-in support to format numbers, but we have few options to get desired #,##0.00 format like:

Using .toLocaleString():

const num = 1234567.8933

// To get only two decimal places use maximumFractionDigits option
const options = {minimumFractionDigits: 2, maximumFractionDigits: 2}
const res = num.toLocaleString(undefined, options)
console.log(res)   //=> 1,234,567.89

Using Intl.NumberFormat:

const num = 1234567.8933

// To get only two decimal places use maximumFractionDigits option
const options = {minimumFractionDigits: 2, maximumFractionDigits: 2}
const res = new Intl.NumberFormat(undefined, options).format(num)
console.log(res)   //=> 1,234,567.89

Answer 2

If you want more complex formatting. You can have a look at http://numeraljs.com/#format