判断输出以及log
functino A(){
const b ={};
return ()=>{
return b;
}
}
1
2
3
4
5
6
2
3
4
5
6
A()()会得到什么？A()().b = 1; A()().c = 2; console.log(A()());会得到什么结果？const a = A(); a().b = 1; a().c = 2;console.log(a());会得到什么结果？
functino A(){
const b ={};
return ()=>{
return b;
}
}
A()()会得到什么？A()().b = 1; A()().c = 2; console.log(A()());会得到什么结果？const a = A(); a().b = 1; a().c = 2;console.log(a());会得到什么结果？