30 строки
624 B
JavaScript
30 строки
624 B
JavaScript
/**
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* Copyright (c) Meta Platforms, Inc. and affiliates.
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*
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* This source code is licensed under the MIT license found in the
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* LICENSE file in the root directory of this source tree.
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*/
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// RUN: %hermes -Xes6-class %s | %FileCheck --match-full-lines %s
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// REQUIRES: es6_class
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class Parent {}
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class Child extends Parent {}
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const parentInstance = new Parent();
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print(parentInstance instanceof Parent);
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//CHECK: true
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print(parentInstance instanceof Child);
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//CHECK: false
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const childInstance = new Child();
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print(childInstance instanceof Parent);
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//CHECK: true
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print(childInstance instanceof Child);
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//CHECK: true
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