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'use strict';
// 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 thisArg 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 »)).
...
flags: [onlyStrict]
includes: [testTypedArray.js]
features: [TypedArray, array-find-from-last]
---*/
testWithTypedArrayConstructors(function(TA) {
var sample = new TA(1);
var result;
sample.findLastIndex(function() {
result = this;
});
assert.sameValue(
result,
undefined,
"without thisArg, predicate this is undefined"
);
var o = {};
sample.findLastIndex(function() {
result = this;
}, o);
assert.sameValue(result, o, "thisArg becomes the predicate this");
});
reportCompare(0, 0);
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