input-valueasdate-null.html

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

<!doctype html>

<meta charset="utf-8">

<title>Assigning null to valueAsDate clears the value</title>

<link rel="help" href="https://html.spec.whatwg.org/multipage/input.html#dom-input-valueasdate">

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

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

<script>

"use strict";

for (const [type, value] of [["date", "2019-12-10"], ["month", "2019-12"], ["week", "2019-W50"], ["time", "12:00"]]) {

  test(() => {

    const input = document.createElement("input");

    input.type = type;

    input.value = value;

    input.valueAsDate = null;

    assert_equals(input.value, "");

    assert_equals(input.valueAsDate, null);

  }, `Assigning null to valueAsDate clears an input of type ${type}`);

</script>