currencies-accepted-by-NumberFormat.js (1815B)
1 // Copyright (C) 2021 André Bargull. All rights reserved. 2 // This code is governed by the BSD license found in the LICENSE file. 3 4 /*--- 5 esid: sec-intl.supportedvaluesof 6 description: > 7 The returned "currency" values can be used with NumberFormat. 8 info: | 9 Intl.supportedValuesOf ( key ) 10 11 1. Let key be ? ToString(key). 12 ... 13 4. Else if key is "currency", then 14 a. Let list be ! AvailableCurrencies( ). 15 ... 16 9. Return ! CreateArrayFromList( list ). 17 18 AvailableCurrencies ( ) 19 The AvailableCurrencies abstract operation returns a List, ordered as if an 20 Array of the same values had been sorted using %Array.prototype.sort% using 21 undefined as comparefn, that contains unique, well-formed, and upper case 22 canonicalized 3-letter ISO 4217 currency codes, identifying the currencies 23 for which the implementation provides the functionality of Intl.DisplayNames 24 and Intl.NumberFormat objects. 25 locale: [en] 26 features: [Intl-enumeration] 27 ---*/ 28 29 const currencies = Intl.supportedValuesOf("currency"); 30 31 for (let currency of currencies) { 32 let obj = new Intl.NumberFormat("en", {style: "currency", currency}); 33 assert.sameValue(obj.resolvedOptions().currency, currency, 34 `${currency} is supported by NumberFormat`); 35 } 36 37 // Note: We can't test that additional currency values not present in |currencies| 38 // aren't supported by Intl.NumberFormat, because PartitionNumberPattern defaults 39 // to using the currency code itself when the currency is unsupported: 40 // 41 // PartitionNumberPattern, step 8.k.iii: 42 // Let cd be an ILD String value representing currency after x in currencyDisplay form, 43 // which may depend on x in languages having different plural forms. If the 44 // implementation does not have such a representation of currency, use currency itself. 45 46 reportCompare(0, 0);