27 lines
1000 B
JavaScript
27 lines
1000 B
JavaScript
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// Copyright 2019 the V8 project authors. All rights reserved.
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// Use of this source code is governed by a BSD-style license that can be
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// found in the LICENSE file.
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let df = new Intl.DateTimeFormat("en");
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// A modern date
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let d1 = new Date(2019, 3, 4);
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let d2 = new Date(2019, 4, 5);
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assertEquals(df.format(d1), df.formatRange(d1, d1));
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assertEquals(df.format(d2), df.formatRange(d2, d2));
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assertEquals("4/4/2019 – 5/5/2019", df.formatRange(d1, d2));
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// An old date just before the Julian / Gregorian switch
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let d3 = new Date(1582, 8, 13);
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let d4 = new Date(1582, 9, 14);
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assertEquals(df.format(d3), df.formatRange(d3, d3));
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assertEquals(df.format(d4), df.formatRange(d4, d4));
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assertEquals("9/13/1582 – 10/14/1582", df.formatRange(d3, d4));
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// An older date
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let d5 = new Date(1000, 0, 1);
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let d6 = new Date(1001, 1, 2);
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assertEquals(df.format(d5), df.formatRange(d5, d5));
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assertEquals(df.format(d6), df.formatRange(d6, d6));
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assertEquals("1/1/1000 – 2/2/1001", df.formatRange(d5, d6));
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