test_define_property.js
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test_define_property.js
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	// Test Object.defineProperty()

	const object = {};

	Object.defineProperty(object, "foo", {
	value: 42,
	writable: false,
	});

	console.log("object.foo =", object.foo);

	// Try to modify (should be prevented by configurable: false default)
	try {
	object.foo = 77;
	console.log("After trying to modify, object.foo =", object.foo);
	} catch (e) {
	console.log("Cannot modify foo (expected):", e);
	}

	// Test with enumerable
	const obj2 = {};
	Object.defineProperty(obj2, "bar", {
	value: "hello",
	enumerable: true,
	configurable: true
	});

	console.log("obj2.bar =", obj2.bar);
	console.log("Object.keys(obj2) =", Object.keys(obj2));

	// Test with non-enumerable property
	const obj3 = {};
	Object.defineProperty(obj3, "hidden", {
	value: "secret",
	enumerable: false
	});
	obj3.visible = "public";

	console.log("obj3.hidden =", obj3.hidden);
	console.log("obj3.visible =", obj3.visible);
	console.log("Object.keys(obj3) =", Object.keys(obj3));

	console.log("All tests passed!");