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LibJS: Format the era of ISO year 0 as BC
This is a normative change in the ECMA-402 spec. See:
2034315
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2 changed files with 13 additions and 2 deletions
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@ -161,6 +161,17 @@ describe("era", () => {
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expect(ar.format(d1)).toBe(d.ar1);
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});
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});
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test("Year 1 BC (ISO year 0)", () => {
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let year1BC = new Date(Date.UTC(0));
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year1BC.setUTCFullYear(0);
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const en = new Intl.DateTimeFormat("en", { era: "short", timeZone: "UTC" });
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expect(en.format(year1BC)).toBe("1/1/1 BC");
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const ar = new Intl.DateTimeFormat("ar", { era: "short", timeZone: "UTC" });
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expect(ar.format(year1BC)).toBe("١ ١ ١ ق.م");
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});
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});
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describe("year", () => {
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