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【JavaScript 関数ドリル】中級編のfromPairs関数の実装アウトプット

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fromPairs関数の課題内容

_.fromPairs関数を自分で実装する課題。
https://lodash.com/docs/4.17.15#fromPairs

「課題内容」/「解説動画」/「解答例」を確認したい場合は、以下リンク先のページを参照。
https://js-drills.com/blog/fromPairs/

課題に取り組む前の状態

  • 解答を見ずにできそうだと思った。

課題に取り組んだ後の状態

  • 解答例は変数への代入が美しく実装されていたので、是非今後は真似したい。

fromPairs関数の実装コード(答えを見る前)

function fromPairs(pairs) {
    const PairedObj = {};
    
    for (let i = 0; i < pairs.length; i++) {
        PairedObj[pairs[i][0]] = pairs[i][1];
    }
    return PairedObj;
}

const result = fromPairs([['a', 1], ['b', 2]]);
console.log(result);
// => { 'a': 1, 'b': 2 }

## fromPairs関数の実装コード(答えを見た後)

function fromPairs(pairs) {
  const PairedObj = {};

  for (let i = 0; i < pairs.length; i++) {
    const [key, value] = pairs[i];
    PairedObj[key] = value;
  }
  return PairedObj;
}
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