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        "question": {
            "questionId": "2776",
            "questionFrontendId": "2692",
            "categoryTitle": "JavaScript",
            "boundTopicId": 2275509,
            "title": "Make Object Immutable",
            "titleSlug": "make-object-immutable",
            "content": null,
            "translatedTitle": "使对象不可变",
            "translatedContent": null,
            "isPaidOnly": true,
            "difficulty": "Medium",
            "likes": 2,
            "dislikes": 0,
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            "hints": [
                "Javascript has the concept of Proxy. That concept is critical to this problem.",
                "Recursively use proxy so that the user of the object is only able to access a proxy object.",
                "Override how set works. It should throw the correct error instead of actually setting a value."
            ],
            "solution": null,
            "status": null,
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