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
46
47
48
49
50
51
52
|
// Copyright (C) 2021 Microsoft. All rights reserved.
// This code is governed by the BSD license found in the LICENSE file.
/*---
esid: sec-%typedarray%.prototype.findlastindex
description: >
Predicate called as F.call( thisArg, kValue, k, O ) for each array entry.
info: |
%TypedArray%.prototype.findLastIndex ( predicate [ , thisArg ] )
...
5. Let k be len - 1.
6. Repeat, while k ≥ 0
...
c. Let testResult be ! ToBoolean(? Call(predicate, thisArg, « kValue, 𝔽(k), O »)).
...
includes: [testBigIntTypedArray.js]
features: [BigInt, TypedArray, array-find-from-last]
---*/
testWithBigIntTypedArrayConstructors(function(TA) {
var sample = new TA([39n, 2n, 62n]);
var results = [];
var result;
sample.foo = "bar"; // Ignores non integer index properties
sample.findLastIndex(function() {
results.push(arguments);
});
assert.sameValue(results.length, 3, "predicate is called for each index");
result = results[0];
assert.sameValue(result[0], 62n, "results[0][0] === 62, value");
assert.sameValue(result[1], 2, "results[0][1] === 2, index");
assert.sameValue(result[2], sample, "results[0][2] === sample, instance");
assert.sameValue(result.length, 3, "results[0].length === 3, arguments");
result = results[1];
assert.sameValue(result[0], 2n, "results[1][0] === 2, value");
assert.sameValue(result[1], 1, "results[1][1] === 1, index");
assert.sameValue(result[2], sample, "results[1][2] === sample, instance");
assert.sameValue(result.length, 3, "results[1].length === 3, arguments");
result = results[2];
assert.sameValue(result[0], 39n, "results[2][0] === 39, value");
assert.sameValue(result[1], 0, "results[2][1] === 0, index");
assert.sameValue(result[2], sample, "results[2][2] === sample, instance");
assert.sameValue(result.length, 3, "results[2].length === 3, arguments");
});
reportCompare(0, 0);
|
