我如何 map 對象數組並從對象返回特定屬性

Question

我有一個具有這種格式的對象數組：

[
    {
        "team_key": "2611",
        "team_name": "Leicester",
        "team_badge": "https://apiv2.apifootball.com/badges/2611_leicester.png",
        "founded": "1884; 136 years ago (as Leicester Fosse FC)",
        "city": "Leicester"
    },
    {
        "team_key": "2612",
        "team_name": "Everton",
        "team_badge": "https://apiv2.apifootball.com/badges/2612_everton.png",
        "founded": "1878; 142 years ago",
        "city": "Liverpool"
    },
]

我想 map 數組並返回一個新數組，其中只有特定參數，如“team_name”和“founded”。

新數組應如下所示：

 [
        {
            "team_name": "Leicester",
            "founded": "1884; 136 years ago (as Leicester Fosse FC)",
        },
        {
            "team_name": "Everton",
            "founded": "1878; 142 years ago",
        }
    ]

Answer 1

Map 陣列？

 const data = [ { "team_key": "2611", "team_name": "Leicester", "team_badge": "https://apiv2.apifootball.com/badges/2611_leicester.png", "founded": "1884; 136 years ago (as Leicester Fosse FC)", "city": "Leicester" }, { "team_key": "2612", "team_name": "Everton", "team_badge": "https://apiv2.apifootball.com/badges/2612_everton.png", "founded": "1878; 142 years ago", "city": "Liverpool" }, ] console.log( // Destruct the object argument into desired keys // and return a new object from them. data.map(({ team_key, founded }) => ({ team_key, founded })) )

Answer 2

根據您的要求，我們假設初始數組是 x。

x = [
{
    "team_key": "2611",
    "team_name": "Leicester",
    "team_badge": "https://apiv2.apifootball.com/badges/2611_leicester.png",
    "founded": "1884; 136 years ago (as Leicester Fosse FC)",
    "city": "Leicester"
},
{
    "team_key": "2612",
    "team_name": "Everton",
    "team_badge": "https://apiv2.apifootball.com/badges/2612_everton.png",
    "founded": "1878; 142 years ago",
    "city": "Liverpool"
},

]

現在您想從該數組對象中刪除一些項目，

y = x.map ( v => {
    return {
        team_name: v.team_name,
        founded: v.founded
    }
})

更簡短的答案：

y =  x.map(({ team_key, founded }) => ({ team_key, founded }))

現在 y 是你的新數組。

如果我對問題的理解有誤或您希望得到其他答案，請通過消息或回復告訴我，我們會盡力解決。