let Person = {
name: 'yue',
sex: 'male',
age:14
};
let person = new Proxy(Person,{
get(target,key){
return target[key];
},
set(target,key,value){
if(key!=='sex'){
target[key] = value;
}
}
});
console.table({
name:person.name,
sex:person.sex,
age:person.age
});
try{
person.sex='female';
}catch(e){
console.log(e);
}finally{
}
2019-01-15
我复制你的代码运行的时候是报错的，具体报错如下：
最后补充：老师的代码里缺少return ,详细代码如下：
let Person2 = {
name: 'es6',
sex: 'male',
age: 17
};
let person2 = new Proxy(Person2, {
get(target, key) {
return target[key];
},
set(target, key, value) {
if(key !== 'sex') {
return (target[key] = value);
}
}
});
console.table({
name: person2.name,
sex: person2.sex,
age: person2.age
});
try{
person2.sex = 'female';
}
catch (e) {
console.log(e);
}
person2.age = 20;
console.table({
name: person2.name,
sex: person2.sex,
age: person2.age
});
举报
