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<!DOCTYPE html>
<meta charset=utf-8>
<title>Datalist element options</title>
<link rel="author" title="Denis Ah-Kang" href="mailto:denis@w3.org">
<link rel=help href="https://html.spec.whatwg.org/multipage/#the-datalist-element">
<script src="/resources/testharness.js"></script>
<script src="/resources/testharnessreport.js"></script>
<div id="log"></div>
<label>
Number:
<input list=numbers>
</label>
<datalist id=numbers>
<label> Select number:
<select id=num>
<option label="zero" value="0">
<option label="one" value="1">
<option label="two">2
<option label="three" disabled>3
<option>
</select>
</label>
</datalist>
<script>
test(function(){
var datalist = document.getElementById('numbers'),
labels = [],
values = [];
assert_equals(datalist.options.length, 5);
for (var i = 0, len = datalist.options.length; i < len; i++) {
assert_equals(datalist.options[i], datalist.options.item(i));
labels.push(datalist.options[i].label);
values.push(datalist.options[i].value);
}
assert_array_equals(labels, ["zero", "one", "two", "three", ""]);
assert_array_equals(values, ["0", "1", "2", "3", ""]);
}, "options label/value");
test(function(){
assert_false(document.getElementById('num').willValidate);
}, "If an element has a datalist element ancestor, it is barred from constraint validation");
</script>
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