# 物件取值、新增、刪除 --- ## 取值 物件如果要取值可以用.(點)就可以,舉例來說: ``` =javascript var family = { //屬性 //值 name: '小明家' , (記得物件裡面的屬性要隔開使用逗號) deposit: 1000, member:{ mom: '老媽', ming: '小明'; } } console.log(family.name); //小明家 console.log(family.members.mom); //老媽 ``` ※ 特別注意:屬性的型別一律為**字串(String)**,因此呼叫時注意要以字串的形式撰寫,例如以下: **另一種呼叫方式(改用中括號):** ```console.log(family['name']);``` **也可以帶入變數呼叫:** ` var a = 'name' ; console.log(family[a]); 也可以成立 ` ## 新增 ```=javascript //新增一組屬性與值進入物件當中,同樣可使用點、中括號等方式 family.dog = '小白'; family['kitten'] = '小貓'; family['$'] = 'money'; ``` ## 刪除 ``` =javascript //delete用以把物件裡面的某一組屬性與值刪除 delete family.deposit; console.log(family); ```
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