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++ // Copyright (C) 2022 The Qt Company Ltd.
++ // SPDX-License-Identifier: LicenseRef-Qt-Commercial OR BSD-3-Clause
++
++ //![qjs-engine-example]
++
++ QJSEngine engine;
++ // We create an object with a read-only property whose getter throws an exception
++ auto val = engine.evaluate("let o = { get f() {throw 42;} }; o");
++ val.property("f");
++ qDebug() << engine.hasError(); // prints false
++
++ // This time, we construct a QJSManagedValue before accessing the property
++ val = engine.evaluate("let o = { get f() {throw 42;} }; o");
++ QJSManagedValue managed(std::move(val), &engine);
++ managed.property("f");
++ qDebug() << engine.hasError(); // prints true
++
++ QJSValue error = engine.catchError();
++ Q_ASSERT(error.toInt(), 42);
++
++ //![qjs-engine-example]