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// Copyright (C) 2021 Microsoft. All rights reserved.
// This code is governed by the BSD license found in the LICENSE file.
/*---
esid: sec-array.prototype.findlastindex
description: >
The range of elements processed is set before the first call to `predicate`.
info: |
Array.prototype.findLastIndex ( predicate[ , thisArg ] )
...
4. Let k be len - 1.
5. Repeat, while k ≥ 0,
...
c. Let testResult be ! ToBoolean(? Call(predicate, thisArg, « kValue, 𝔽(k), O »)).
...
features: [array-find-from-last]
---*/
var arr = ['Shoes', 'Car', 'Bike'];
var results = [];
arr.findLastIndex(function(kValue) {
if (results.length === 0) {
arr.splice(1, 1);
}
results.push(kValue);
});
assert.sameValue(results.length, 3, 'predicate called three times');
assert.sameValue(results[0], 'Bike');
assert.sameValue(results[1], 'Bike');
assert.sameValue(results[2], 'Shoes');
results = [];
arr = ['Skateboard', 'Barefoot'];
arr.findLastIndex(function(kValue) {
if (results.length === 0) {
arr.push('Motorcycle');
arr[0] = 'Magic Carpet';
}
results.push(kValue);
});
assert.sameValue(results.length, 2, 'predicate called twice');
assert.sameValue(results[0], 'Barefoot');
assert.sameValue(results[1], 'Magic Carpet');
reportCompare(0, 0);
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