訪問JSON中的嵌套數組對象和值

Question

我具有以下JSON結構，並且需要遍歷data.list的嵌套值。 當我使用以下console.log(data["list"][0]["My website is https://www.test.com"][0][0].command); ，但當我嘗試遍歷data.list的對象的整體時，則不會。

var data = {
    "list": [
        {
            "The first website is https://www.w3.org/": [
                [
                    {
                        "command": "This is dummy content",
                        "new": false,
                        "message": "This was fun to make"
                    }
                ]
            ]
        },
        {
            "The second website is https://www.mozilla.org": [
                [
                    {
                        "command": "This is the second command",
                        "new": true,
                        "message": "Lorem ipsum"
                    }
                ]
            ]
        }
    ],
    "verified": false
};


for (var i = 0; i < data.list.length; i++) {
        // this doesn't work
        console.log(data.list[i][0]["0"]["0"]).command;
}

Answer 1

您可以使用對象中的第一個鍵。

 var data = { list: [{ "The first website is https://www.w3.org/": [[{ command: "This is dummy content", new: false, message: "This was fun to make" }]] }, { "The second website is https://www.mozilla.org": [[{ command: "This is the second command", new: true, message: "Lorem ipsum" }]] }], verified: false }, i; for (i = 0; i < data.list.length; i++) { console.log( data.list[i][Object.keys(data.list[i])[0]][0][0].command); } 

Answer 2

由於列表中的項目是對象，因此您需要在單獨的循環中對其進行迭代。 另外，您必須考慮到它是一個對象，因此應將對象屬性用作索引而不是整數。

以下應該工作：

for (var i = 0; i < data.list.length; i++) {
        // this doesn't work
        for (var property in data.list[i]) {
            console.log(data.list[i][property][0][0].command);
        }
}