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I currently have a JSON object result which looks like the following:

[ { "Score_A": -112.166458, "Score_B": 33.462795, "Rating": 3, "Team_Score": 5.01 }, { "Score_A": -112.11248, "Score_B": 33.510269, "Rating": 3, "Team_Score": 5.01 }, { "Score_A": -112.06501, "Score_B": 33.523769, "Rating": 2, "Team_Score": 5.02 } ]

I want to store this in a variable new_result by removing the fields Rating and Team_Score. I also want to change the key for Score_A and Score_B to User1_Score and User2_Score respectively.

How can I do this?

Expected Result new_result:

[ { "User1_Score": -112.166458, "User2_Score": 33.462795 }, { "User1_Score": -112.11248, "User2_Score": 33.510269 }, { "User1_Score": -112.06501, "User2_Score": 33.523769 } ]

Note: The length of result is never constant.

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    j.map(i => ({ User1_Score: i.Score_A, User2_Score: i.Score_B }))? Commented Feb 5, 2021 at 9:47

1 Answer 1

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The array.map function should do it:

data = [ { "Score_A": -112.166458, "Score_B": 33.462795, "Rating": 3, "Team_Score": 5.01 }, { "Score_A": -112.11248, "Score_B": 33.510269, "Rating": 3, "Team_Score": 5.01 }, { "Score_A": -112.06501, "Score_B": 33.523769, "Rating": 2, "Team_Score": 5.02 } ] result = data.map(item => ({ user1_score: item.Score_A, user2_score: item.Score_B })) // Event more neat with new syntax: result = data.map(({ Score_A, Score_B }) => ({ user1_score: Score_A, user2_score: Score_B })) console.log(result)

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2 Comments

"Event more neat with new syntax" — I dunno, just seems more verbose…
@deceze opinions... I could argue that i like it because it shows what we need in the data for the result to happen. But whatever, I just show both options and op can choose!

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