1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
|
<!doctype html>
<meta charset=utf-8>
<title>Deleting properties from HTMLCollection</title>
<script src=/resources/testharness.js></script>
<script src=/resources/testharnessreport.js></script>
<div id=log></div>
<i id=foo></i>
<script>
let c, expected;
setup(() => {
// These might be cached anyway, so explicitly use a single object.
c = document.getElementsByTagName("i");
expected = document.getElementById("foo");
});
test(() => {
assert_equals(c[0], expected, "before");
delete c[0];
assert_equals(c[0], expected, "after");
}, "Loose id");
test(() => {
assert_equals(c[0], expected, "before");
assert_throws_js(TypeError, function() {
"use strict";
delete c[0];
});
assert_equals(c[0], expected, "after");
}, "Strict id");
test(() => {
assert_equals(c.foo, expected, "before");
delete c.foo;
assert_equals(c.foo, expected, "after");
}, "Loose name");
test(() => {
assert_equals(c.foo, expected, "before");
assert_throws_js(TypeError, function() {
"use strict";
delete c.foo;
});
assert_equals(c.foo, expected, "after");
}, "Strict name");
</script>
|
