45 lines
1.2 KiB
HTML
45 lines
1.2 KiB
HTML
<!doctype html>
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<meta charset="utf-8">
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<link rel="help" href="https://dom.spec.whatwg.org/#interface-htmlcollection">
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<link rel="help" href="https://webidl.spec.whatwg.org/#es-iterator">
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<title>HTMLCollection @@iterator Test</title>
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<script src="/resources/testharness.js"></script>
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<script src="/resources/testharnessreport.js"></script>
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<p id="1"></p>
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<p id="2"></p>
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<p id="3"></p>
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<p id="4"></p>
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<p id="5"></p>
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<script>
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"use strict";
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const paragraphs = document.getElementsByTagName("p");
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test(() => {
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assert_true("length" in paragraphs);
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}, "HTMLCollection has length method.");
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test(() => {
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assert_false("values" in paragraphs);
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}, "HTMLCollection does not have iterable's values method.");
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test(() => {
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assert_false("entries" in paragraphs);
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}, "HTMLCollection does not have iterable's entries method.");
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test(() => {
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assert_false("forEach" in paragraphs);
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}, "HTMLCollection does not have iterable's forEach method.");
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test(() => {
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assert_true(Symbol.iterator in paragraphs);
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}, "HTMLCollection has Symbol.iterator.");
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test(() => {
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const ids = "12345";
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let idx = 0;
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for (const element of paragraphs) {
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assert_equals(element.getAttribute("id"), ids[idx++]);
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}
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}, "HTMLCollection is iterable via for-of loop.");
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</script>
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