// Copyright (C) 2022 Igalia, S.L. All rights reserved.
// This code is governed by the BSD license found in the LICENSE file.
/*---
esid: sec-temporal.plaindate.prototype.since
description: A number cannot be used in place of a Temporal.PlainDate
features: [Temporal]
---*/
const instance = new Temporal.PlainDate(1976, 11, 18);
const numbers = [
1,
19761118,
-19761118,
1234567890,
];
for (const arg of numbers) {
assert.throws(
TypeError,
() => instance.since(arg),
'Numbers cannot be used in place of an ISO string for PlainDate'
);
}