想把数组外层的selected和chlidren里面的这个属性都改为false，递归如何写

 let newArr = [
            {
                name: "2020合集",
                selected: true,
                children: [
                    {
                        id: 1,
                        selected: true,
                        name: "夏",
                    },
                    {
                        id: 2,
                        selected: true,
                        name: "秋",
                    }
                ]
            }
        ]

 let newArr = [
            {
                name: "2020合集",
                selected: true,
                children: [
                    {
                        id: 1,
                        selected: true,
                        name: "夏",
                    },
                    {
                        id: 2,
                        selected: true,
                        name: "秋",
                    }
                ]
            }
        ]
       let c= this.loop(newArr, 'selected', false);
       console.log(newArr) 
loop = (data, key, val) => {
      data.map((item) => {
            item[key] = val;
            if (item.children && item.children.length > 0) {
                loop(item.children, key, val);
            }
        })
 }

let newArr = [
            {
                name: "2020合集",
                selected: true,
                children: [
                    {
                        id: 1,
                        selected: true,
                        name: "夏",
                    },
                    {
                        id: 2,
                        selected: true,
                        name: "秋",
                    }
                ]
            }
        ]

function dg(arr) {
	arr.forEach(function(obj){
		if ("selected" in obj) {
			obj.selected = false;
		}
		if (Array.isArray(obj.children)) {
			dg(obj.children);
		}
	});
}
dg(newArr);
console.log(newArr);

如果结构就这样，只有2层的话，不用递归，循环嵌套就可以了。

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