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LibJS: Extend Intl.DisplayNames.of to support language tags

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Timothy Flynn 2021-08-26 08:17:44 -04:00 committed by Linus Groh
parent ab7a1dd89e
commit ca77a7c573
Notes: sideshowbarker 2024-07-18 05:13:56 +09:00 
Author: https://github.com/trflynn89
Commit: https://github.com/SerenityOS/serenity/commit/ca77a7c5731
Pull-request: https://github.com/SerenityOS/serenity/pull/9622
Reviewed-by: https://github.com/linusg
2 changed files with 16 additions and 0 deletions
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1
Userland/Libraries/LibJS/Runtime/Intl/DisplayNamesPrototype.cpp
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@ -77,6 +77,7 @@ JS_DEFINE_NATIVE_FUNCTION(DisplayNamesPrototype::of)
switch (display_names->type()) {
case DisplayNames::Type::Language:
result = Unicode::get_locale_language_mapping(display_names->locale(), code.as_string().string());
break;
case DisplayNames::Type::Region:
result = Unicode::get_locale_territory_mapping(display_names->locale(), code.as_string().string());

15
Userland/Libraries/LibJS/Tests/builtins/Intl/DisplayNames/DisplayNames.prototype.of.js
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@ -29,6 +29,21 @@ describe("correct behavior", () => {
expect(Intl.DisplayNames.prototype.of).toHaveLength(1);
});
test("option type language", () => {
const en = new Intl.DisplayNames("en", { type: "language" });
expect(en.of("en")).toBe("English");
const es419 = new Intl.DisplayNames("es-419", { type: "language" });
expect(es419.of("en")).toBe("inglés");
const zhHant = new Intl.DisplayNames(["zh-Hant"], { type: "language" });
expect(zhHant.of("en")).toBe("英文");
expect(en.of("zz")).toBe("zz");
expect(es419.of("zz")).toBe("zz");
expect(zhHant.of("zz")).toBe("zz");
});
test("option type region", () => {
const en = new Intl.DisplayNames("en", { type: "region" });
expect(en.of("US")).toBe("United States");