1919905 - number.toLocaleString returns incorrect formatting for en-ID

Status: RESOLVED FIXED

(Core :: JavaScript: Internationalization API, defect, P3)

Description

[jessneurismfarmer]

Steps to reproduce:

let num = 123456.78
console.log(num.toLocaleString('en-ID'));

Actual results:

123,456.78

Expected results:

123.456,78

Comment 1

[Francesco Lodolo [:flod]]

The latest CLDR (v45) has

"symbols-numberSystem-latn": {
  "decimal": ",",
  "group": ".",

But also

"decimalFormats-numberSystem-latn": {
  "standard": "#,##0.###",

Which seems an error.

With that said, Chrome returns 123.456,78, but I don't see this data changing between v45 and v43 (which AFAIK is the one use by Firefox).

Comment 2

[André Bargull [:anba]]

(In reply to Francesco Lodolo [:flod] from comment #1)

With that said, Chrome returns 123.456,78, but I don't see this data changing between v45 and v43 (which AFAIK is the one use by Firefox).

Yes, we're still using CLDR 43 (because of various ICU issues). Per https://cldr.unicode.org/index/downloads/cldr-44, en-ID was introduced in CLDR 44, which explains why it's currently unsupported:

> new Intl.NumberFormat("en-ID").resolvedOptions().locale
"en"

Comment 3

[jessneurismfarmer]

Interestingly, providing a fall back language also does not work.

console.log(1234567.89.toLocaleString(["en-id", "id-id"]));
Actual results:
123,456.78

Expected results:
123.456,78

Comment 4

[André Bargull [:anba]]

Fixed through the update to ICU 76 (bug 1927706).