| // Copyright (C) 2021 André Bargull. All rights reserved. |
| // This code is governed by the BSD license found in the LICENSE file. |
| |
| /*--- |
| esid: sec-intl.supportedvaluesof |
| description: > |
| The returned "currency" values can be used with NumberFormat. |
| info: | |
| Intl.supportedValuesOf ( key ) |
| |
| 1. Let key be ? ToString(key). |
| ... |
| 4. Else if key is "currency", then |
| a. Let list be ! AvailableCurrencies( ). |
| ... |
| 9. Return ! CreateArrayFromList( list ). |
| |
| AvailableCurrencies ( ) |
| The AvailableCurrencies abstract operation returns a List, ordered as if an |
| Array of the same values had been sorted using %Array.prototype.sort% using |
| undefined as comparefn, that contains unique, well-formed, and upper case |
| canonicalized 3-letter ISO 4217 currency codes, identifying the currencies |
| for which the implementation provides the functionality of Intl.DisplayNames |
| and Intl.NumberFormat objects. |
| locale: [en] |
| features: [Intl-enumeration] |
| ---*/ |
| |
| const currencies = Intl.supportedValuesOf("currency"); |
| |
| for (let currency of currencies) { |
| let obj = new Intl.NumberFormat("en", {style: "currency", currency}); |
| assert.sameValue(obj.resolvedOptions().currency, currency, |
| `${currency} is supported by NumberFormat`); |
| } |
| |
| // Note: We can't test that additional currency values not present in |currencies| |
| // aren't supported by Intl.NumberFormat, because PartitionNumberPattern defaults |
| // to using the currency code itself when the currency is unsupported: |
| // |
| // PartitionNumberPattern, step 8.k.iii: |
| // Let cd be an ILD String value representing currency after x in currencyDisplay form, |
| // which may depend on x in languages having different plural forms. If the |
| // implementation does not have such a representation of currency, use currency itself. |
