js 访问器 set get

const user = {
    data:{name:"angdh",age:11},
    set age(value){
        if(typeof value != "number"){
            throw new Error("xxx")

        }
        this.data.age = value;
    },
    get age(){
        return this.data.age + "岁"
    }
};



user.age = 89;

console.log(user.age);

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