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@kageryosan(kageryo san)

オブジェクトの配列から、特定Keyのみの配列をつくる

Last updated at Posted at 2020-01-20

JavaScript でオブジェクトの配列から、特定のKeyのValueで配列を作る


const hoge = [
 { a : 1, b : 4 },
 { a : 2, b : 5 },
 { a : 3, b : 6 }
];

const fuga = hoge.map((obj) => obj.a);

console.log(fuga); // [1,2,3]
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