关于javascript:js-对象根据路径修改值

var obj = {    "zhang":{        name:'张三',        girlfriend:{            name:'阿狸',        }    }}var path = 'zhang-girlfriend-name'var value = '娑娜'function setVal(){    var list = path.split("-");    var th = "";    for (let i = 0; i < list.length; i++) {        th += "['" + list[i] + "']";    }    eval(`obj${th}='${value}'`)}  

• 运行后果

{    "zhang":{        name:'张三',        girlfriend:{            name:'娑娜',        }    }}