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f579e11940
PR-URL: https://github.com/nodejs/node/pull/26685 Reviewed-By: Anna Henningsen <anna@addaleax.net> Reviewed-By: Michaël Zasso <targos@protonmail.com> Reviewed-By: Refael Ackermann <refack@gmail.com>
30 lines
733 B
JavaScript
30 lines
733 B
JavaScript
// Copyright 2018 the V8 project authors. All rights reserved.
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// Use of this source code is governed by a BSD-style license that can be
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// found in the LICENSE file.
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{
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class MyArray extends Array {
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static get [Symbol.species]() {
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return Array;
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}
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}
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const wannabe = new MyArray();
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const flattened = wannabe.flat(Infinity);
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assertEquals(false, flattened instanceof MyArray);
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assertEquals(true, flattened instanceof Array);
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}
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{
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class MyArray extends Array {
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static get [Symbol.species]() {
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return this;
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}
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}
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const wannabe = new MyArray();
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const flattened = wannabe.flat(Infinity);
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assertEquals(true, flattened instanceof MyArray);
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assertEquals(true, flattened instanceof Array);
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}
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