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// Copyright (C) 2021 Igalia, S.L. All rights reserved.
// This code is governed by the BSD license found in the LICENSE file.
/*---
esid: sec-array.prototype.toSpliced
description: >
Array.prototype.toSpliced does not preserve holes in the array
info: |
Array.prototype.toSpliced ( start, deleteCount, ...items )
...
13. Let k be 0.
14. Repeat, while k < actualStart,
a. Let Pk be ! ToString(𝔽(k)).
b. Let kValue be ? Get(O, Pk).
c. Perform ? CreateDataPropertyOrThrow(A, Pk, kValue).
d. Set k to k + 1.
...
16. Repeat, while k < newLen,
a. Let Pk be ! ToString(𝔽(k)).
b. Let from be ! ToString(𝔽(k + actualDeleteCount - insertCount)).
c. Let fromValue be ? Get(O, from).
d. Perform ? CreateDataPropertyOrThrow(A, Pk, fromValue).
e. Set k to k + 1.
...
includes: [compareArray.js]
features: [change-array-by-copy]
---*/
var arr = [0, /* hole */, 2, /* hole */, 4];
Array.prototype[3] = 3;
var spliced = arr.toSpliced(0, 0);
assert.compareArray(spliced, [0, undefined, 2, 3, 4]);
assert(spliced.hasOwnProperty(1));
assert(spliced.hasOwnProperty(3));
spliced = arr.toSpliced(0, 0, -1);
assert.compareArray(spliced, [-1, 0, undefined, 2, 3, 4]);
assert(spliced.hasOwnProperty(1));
assert(spliced.hasOwnProperty(3));
reportCompare(0, 0);
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