オブジェクトのデータの持ち方について - Qiita

let a = {}; a = user.getbookhobby(); $.each(a, function(key, val){ console.log(val); }); $(function(){ let user = { name: '山田', age: 27, address: '東京', hobby:{ 'book':{}, 'sports':{}, }, getbookhobby:function(){ return user.hobby.book; }, setbookhobby:function($key, $value){ user.hobby.book[$key] = $value; }, gethobby:function(){ return user.hobby; }, }; user.setbookhobby('0', 'AAA'); user.setbook