利用for循环给数组对象添加字段

<script>
    //将objA中className字段添加到person字段每一项中
    var objA = {
        classes: [{
            className: "移应202班",
            person: [{
                name: '小明',
                sex: "男"
            }, {
                name: '小明',
                sex: "男"
            }, {
                name: '小明',
                sex: "男"
            }]
        }, {
            className: "移应201班",
            person: [{
                name: '小红',
                sex: "女"
            }, {
                name: '小红',
                sex: "女"
            }, {
                name: '小红',
                sex: "女"
            }]
        }]
    }


    for (let i = 0; i < objA.classes.length; i++) {
        for (let j = 0; j < objA.classes[i].person.length; j++) {
            objA.classes[i].person[j]['className'] = objA.classes[i].className
        }
    }
    console.log(objA)
</script>