datetime-local-valueasdate.html

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This WPT test may be referenced by the following Test IDs:
- /html/semantics/forms/the-input-element/datetime-local-valueasdate.html - WPT Dashboard Interop Dashboard

<!DOCTYPE HTML>

<meta charset="utf-8">

<link rel="help" href="https://html.spec.whatwg.org/multipage/input.html#local-date-and-time-state-(type=datetime-local)">

<link rel="help" href="https://bugzilla.mozilla.org/show_bug.cgi?id=1933351">

<title>valueAsDate does not apply to datetime-local inputs</title>

<script src="/resources/testharness.js"></script>

<script src="/resources/testharnessreport.js"></script>

<input id="i" type="datetime-local" value="2026-01-01T00:00:00">

<script>

test(() => {

  assert_equals(i.valueAsDate, null, "valueAsDate must return null for <input type=datetime-local>");

  assert_throws_dom("InvalidStateError", () => {

    i.valueAsDate = new Date("2026-01-01T00:00:00");

  }, "valueAsDate setter must throw InvalidStateError");

});

</script>