var a = {n:1};var b = a;a.x = a = {n:2};console.log(a.x);//undefindconsole.log(b.x);//object (n:2)console.log(b);//object (n:1,x:object)请问第三行连续赋值发生了什么~
求解这一小段JS代码
2017-09-05 12:50:29 来源：网友分享
var a = {n:1};var b = a;a.x = a = {n:2};console.log(a.x);//undefindconsole.log(b.x);//object (n:2)console.log(b);//object (n:1,x:object)请问第三行连续赋值发生了什么~