遍历数组的每一项里面的某一项属性且是数组的过滤出想得到的数据

    {
        id: 1,
        name: '麦迪',
        skill: [
            {
                uid: 1,
                title: '干拔',
                isChecked: true
            },
            {
                uid: 2,
                title: '突破',
                isChecked: true
            },
            {
                uid: 3,
                title: '变向',
                isChecked: false
            }
        ]
    },
    {
        id: 2,
        name: '科比',
        skill: [
            {
                uid: 1,
                title: '急停跳投',
                isChecked: true
            },
            {
                uid: 2,
                title: '扣篮',
                isChecked: true
            },
            {
                uid: 3,
                title: '突破',
                isChecked: false
            }
        ]
    }
]

现在有个需求： 过滤掉数组每一项数据的skill属性里的isChecked为false 重新得到一个新数组，代码如下：

let result = []

arr.forEach((item,index) => {
    let flag = []
    item.skill.forEach((_item,_index) => {
        if(_item.isChecked) {
            flag.push({
                ..._item
            })
        }
        if(flag.length) {
            // 遍历到最后一项才向result数组push
            if(_index + 1 == item.skill.length) {
                result.push({
                    ...item,
                    skill: flag
                })
            }
        }
    })
})