Source code
Revision control
Copy as Markdown
Other Tools
// Copyright (C) 2022 Igalia, S.L. All rights reserved.
// This code is governed by the BSD license found in the LICENSE file.
/*---
esid: sec-expanded-years
description: Negative zero, as an extended year, is rejected
info: |
The year 0 is considered positive and must be prefixed with a + sign. The
representation of the year 0 as -000000 is invalid.
---*/
const invalidStrings = [
"-000000-03-31T00:45Z",
"-000000-03-31T01:45",
"-000000-03-31T01:45:00+01:00"
];
for (const str of invalidStrings) {
assert.sameValue(+new Date(str), NaN, "reject minus zero as extended year");
}
reportCompare(0, 0);