function user() {
        this.name = 20;
};

var b = new user();
Object.defineProperty(b, 'name', {
    writable: false,
    value: 'ooo'
});
console.log(b.name = 50);

这句代码为什么会输出50?
--
修改:ename FROM 221.221.22.*
FROM 221.221.22.*

就是说当b.name不可以写时，这句赋值语句返回的是右侧的值？

【 在 ottffsse 的大作中提到: 】
: b.name=50; //this expression "b.name=50" is evaluated as 50, that is, the right side to the equal operator. 'cuz b.name is not writable, b.name, however,  is unchanged
: //if you run console.log(b.name) again, you will see "ooo", not 50.
:
--
FROM 221.221.22.*