CODEWITHSUNDEEP
javascript
Meraj Kazi
Meraj Kazi

Reputation: 97

Efficient solutuon to Filter objects inside objects inside an array

I have an array of objects containing more objects.

const latestMatchesArray = [
    {
      team1: {
        team_id: '1234',
        teamName: 'abc 101',
        score: 1,
      },
      team2: {
        team_id: '4321',
        teamName: 'cba 101',
        score: 0,
      },
    },
    {
      team1: {
        team_id: '1234',
        teamName: 'abc 101',
        score: 0,
      },
      team2: {
        team_id: '4321',
        teamName: 'cba 101',
        score: 1,
      },
    },
  ]

Each object contains a match between two teams, after the match, the scores are updated. Winner gets 1, loser gets 0.

Now I want to filter the array and get only teams with score = 1.

How to do this efficiently?

Upvotes: 1

Views: 30

Answers (1)

Robo Robok
Robo Robok

Reputation: 22775

Not sure if this is what you're looking for, but to get an array of teams that won, you can use Array.prototype.reduce() like this:

const winners = latestMatchesArray.reduce(
    (teams, match) => [
        ...teams,
        ...[match.team1, match.team2].filter(
            team => team.score === 1
        )
    ],
    []
);

Upvotes: 2

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