supportedValuesOf-currency.js

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// |reftest| skip-if(!this.hasOwnProperty("Intl"))

const currencies = Intl.supportedValuesOf("currency");

assertEq(new Set(currencies).size, currencies.length, "No duplicates are present");

assertEqArray(currencies, [...currencies].sort(), "The list is sorted");

const codeRE = /^[A-Z]{3}$/;

for (let currency of currencies) {

  assertEq(codeRE.test(currency), true, `${currency} is a 3-letter ISO 4217 currency code`);

for (let currency of currencies) {

  let obj = new Intl.NumberFormat("en", {style: "currency", currency});

  assertEq(obj.resolvedOptions().currency, currency, `${currency} is supported by NumberFormat`);

for (let currency of currencies) {

  let obj = new Intl.DisplayNames("en", {type: "currency", fallback: "none"});

  assertEq(typeof obj.of(currency), "string", `${currency} is supported by DisplayNames`);

if (typeof reportCompare === "function")

  reportCompare(true, true);