js提取JSON数据中需要的那部分数据

        var data =[
        { name: "程咬金",sex:"1",age:26 },
        { name: "程才",sex:"0",age:20 },
        { name: "程新松",sex:"1",age:22 },
        { name: "程功",sex:"1",age:18 }
    ];

    var newd = JSON.stringify(data,['name','sex'])
    console.log(newd)