快速获取js对象键和值

var o = {
        "say": "Hello World",
        "name": "Keith Chou",
        "height": "180",
        "weight": "120"
    };
    Object.keys(o);
    // ["say","name","height","weight"]

   Object.values(o)
   //["Hello World", "Keith Chou", "180", "120"]