js中连续赋值

连续赋值（1）

var a = {n:1};
var b = a;//{n:1)
a = {n:2};
a.x = a;
console.log(a.x);// { n: 2, x: [Circular] }
console.log(b.x);// undefined

精品讲解地址：https://blog.csdn.net/lvchunai/article/details/93971409

连续赋值（2）

var a = {n:1};
var b = a;//{n:1)
a.x = a = {n:2};
console.log(a.x);//undefined
console.log(b.x);//{n:2}

精品的讲解地址：https://blog.csdn.net/weixin_34088583/article/details/89085477?utm_medium=distribute.pc_relevant.none-task-blog-BlogCommendFromBaidu-1.nonecase&depth_1-utm_source=distribute.pc_relevant.none-task-blog-BlogCommendFromBaidu-1.nonecase