javascript - 从对象的嵌套数组中返回匹配的项目

Question

我有按预定数据分组的数组，如下所示

[{
scheduledOn: "2020-02-05T00:00:00"
matches:
{id: 1, homeTeamName: "BLUE", homeTeamId: 1, homeScore: 1, awayTeamName: "Red", awayTeamId: 2, …}
{id: 2,homeTeamName: "Red", homeTeamId: 2, homeScore: 1, awayTeamName: "Yellow", awayTeamId: 3, …}
},
{
scheduledOn: "2020-01-06T00:00:00"
matches:
0: {id:3, homeTeamName: "BLUE", homeTeamId: 1, homeScore: 0, awayTeamName: "Yellow", awayTeamId: 3, …}
}]

我想返回一个与所选 ID 匹配的匹配对象(不是数组)

我尝试过的可能解决方案1:

matches.map(match => match.matches
              .find(m => m.id === selectedId))

返回:

 [{

    id: 1, homeTeamName: "BLUE", homeTeamId: 1, homeScore: 1, awayTeamName: "Red", awayTeamId: 2, …
    }]

但我希望这只是一个对象而不是数组。

我尝试过的可能解决方案2:

matches.map(match => match.matches
              .filter(m => m.id === selectedId))
              .map(match => console.log(match

)

返回:

 [
    {id: 1, homeTeamName: "BLUE", homeTeamId: 1, homeScore: 1, awayTeamName: "Red", awayTeamId: 2, …}
    ]

但这也以数组形式返回。

有没有办法可以匹配 id 对象而不是数组？

感谢您的帮助

Answer 1

您使用了 find() 两次

const matches = [{
scheduledOn: "2020-02-05T00:00:00",
matches:[
{id: 1, homeTeamName: "BLUE", homeTeamId: 1, homeScore: 1, awayTeamName: "Red", awayTeamId: 2 },
{id: 2,homeTeamName: "Red", homeTeamId: 2, homeScore: 1, awayTeamName: "Yellow", awayTeamId: 3 }]
},
{
scheduledOn: "2020-01-06T00:00:00",
matches:[{id:3, homeTeamName: "BLUE", homeTeamId: 1, homeScore: 0, awayTeamName: "Yellow", awayTeamId: 3 }]
}];


const selectedId =  3;
const required = matches.find(match => 
                  match.matches.find(m => m.id === selectedId));
console.log(required);

   // if you wanted nested object, add another `.find()`
   console.log(required .matches.find(m => m.id === selectedId));