Vue.js搜索复杂的对象

Question

我有一个JSON对象，该对象反映了工作人员的日程安排，并且城市名称嵌套在底层。如何创建搜索（过滤器）以返回整个对象，但仅返回城市匹配的位置？请参阅此密码笔https://codepen.io/jakeburkart/pen/LgdVRN。是否使用计算或方法？我在哪里循环？ 这是JSON的一小部分：

    {
    "jyoung": {
        "timeslot-0": [],
        "timeslot-1": [{
            "userName": "jyoung",
            "customerName": "BLOCK",
            "customerAddress": "BLOCK",
            "customerCity": "Vacaville",
            "customerZip": "95687",
            "customerPhone": "block "
        }],
        "timeslot-2": [],
        "timeslot-3": [{
            "userName": "jyoung",
            "customerName": "BLOCK",
            "customerAddress": "BLOCK",
            "customerCity": "Dublin",
            "customerZip": "95687",
            "customerPhone": "N/A"
        }],
        "timeslot-4": []
    }
}