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配列の中にオブジェクトが入っている場合のvalue値の取得方法二次元配列 Javascript

Last updated at Posted at 2019-02-05

備忘録として残しておきます。
以下のような配列で、key値のvalue値を取得した時に使うmap関数について、今日教わったのでメモメモ。

  const ArrayTest = [{
            id: 1,
            name: "callen"
        }, {
            id: 2,
            name: "Tom"
        }, {
            id: 3,
            name: "John"
        }];
        const list = ArrayTest.map(obj => obj.name);
        console.log(list);

結果
スクリーンショット 2019-02-05 22.20.30.png

APIでJSONを扱う時に使える。
超絶便利。

参考資料

配列内のオブジェクトをフォーマットするために map を使用する MDN web docs

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