Question

我有一个循环的对象。在我循环对象之前，我决定将值存储在单独的变量中，为此我使用对象表示法来获取值..我对“选项”和“行”未定义 - 这两者都有错访问？

或任何人建议我访问这些节点的正确方法。

这是我的目标：

var ob = {
   "DashBoard":[

    {"title":"DashBoard"},
    {"widget":[{"slide":"To do"},{"slide":"Teamspace"},{"slide":"Recent Activity"}]},
    {"activity":[
        {"option":[{"show":"Volvo"},{"show":"Benz"},{"show":"Honda"}]},
        {"rows":[

            {"title":"Advert1", "text":"sample text1", "date":"22-06-2013"},
            {"title":"Advert2", "text":"sample text2", "date":"22-06-2014"},
            {"title":"Advert3", "text":"sample text3", "date":"22-06-2015"},
            {"title":"Advert4", "text":"sample text4", "date":"22-06-2016"},
            {"title":"Advert5", "text":"sample text5", "date":"22-06-2017"}


        ]}
    ]}

   ]
} 


var title =  ob.DashBoard[0], widget= ob.DashBoard[1], option = ob.DashBoard[2]["option"], rows = ob.DashBoard[2]["rows"];

console.log(option); //undefined
console.log(rows); //undefined

我在两种情况下得到的结果都是未定义的......

fiddle here

Answer 1

阅读ob.DashBoard[2].activity[0]["option"] and ob.DashBoard[2].activity[1]["option"].

你将能够阅读你的json

访问对象数组，将结果显示为“未定义”

1 个答案: