概要 JavaScriptで以下のようなオブジェクトをマージする方法について書きます。 本題は深いマージ(deep merge,deep copy)です ※functionが存在しないプロパティのみのオブジェクトを想定 const a = { familyName: '織田', firstName: '吉法師', address: '尾張', sex: '男', details: { character: { favoriteTactics: '奇襲', favoriteWord: '天下布武', favoritePlace: '京' }, ownedCastle: [ '清洲城' ] } }; const b = { familyName: '織田', firstName: '信長', details: { character: { favoriteTactics: '鉄砲活用' },
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