Formatting numbers for currency in js

Question

I want to format numbers to currency format and I'm trying as follows. I present two examples:

var numero = 1274.78;
var numero1 = 12740.78;
var myObj = {
  style: "currency",
  currency: "EUR"
}

console.log(numero.toLocaleString("pt-PT", myObj));

console.log(numero1.toLocaleString("pt-PT", myObj));

In the second example it correctly formats the number, but in the first example it doesn't. As you already have thousands of thousands, you should format the number as follows 1 274.78 € and not as you are formatting it.

1274,78 is the expected format for the Portugese locale. If you want 1 274,78, try using the fr-FR locale. — Niet the Dark Absol
– Niet the Dark Absol, Commented Jul 30, 2021 at 10:54
@Niet the Dark Absol Thanks, so it already prints correctly. — Bruno
– Bruno, Commented Jul 30, 2021 at 10:59

Adamszsz · Accepted Answer · 2021-07-30 11:16:57Z

1

You can do something like that use numberWithSpaces function:

    var numero = 1274.78;
    var numero1 = 12740.78;
    var myObj = {
      style: "currency",
      currency: "EUR"
    }
    
    
    function numberWithSpaces(x) {
        var parts = x.toString().split(".");
        parts[0] = parts[0].replace(/\B(?=(\d{3})+(?!\d))/g, " ");
        return parts.join(".");
    }
    
   console.log(numberWithSpaces(numero).toLocaleString("pt-PT", myObj));

   console.log(numberWithSpaces(numero1).toLocaleString("pt-PT", myObj));

The result is :

answered Jul 30, 2021 at 11:16

Adamszsz

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