option-index.html - mozsearch

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

<!DOCTYPE HTML>

<title>HTMLOptionElement.prototype.index</title>

<link rel="author" title="Domenic Denicola" href="mailto:d@domenic.me">

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

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

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

<select>

<option id="option0">hello</option>

<option id="option1">hello</option>

</select>

<datalist>

<option id="dl-option0">hello</option>

<option id="dl-option1">hello</option>

</datalist>

<option id="doc-option0">hello</option>

<option id="doc-option1">hello</option>

<script>

"use strict";

test(() => {

  assert_equals(document.querySelector("#option0").index, 0);

  assert_equals(document.querySelector("#option1").index, 1);

}, "option index should work inside the document");

test(() => {

  assert_equals(document.querySelector("#dl-option0").index, 0);

  assert_equals(document.querySelector("#dl-option1").index, 0);

}, "option index should always be 0 for options in datalists");

test(() => {

  assert_equals(document.querySelector("#doc-option0").index, 0);

  assert_equals(document.querySelector("#doc-option1").index, 0);

}, "option index should always be 0 for options with no container");

test(() => {

  assert_equals(document.createElement("option").index, 0);

  assert_equals(document.createElement("option").index, 0);

}, "option index should always be 0 for options not even in the document");

</script>