1、
function C () {
this.a = 1;
return false; }
console.log (typeof new C());
object
function C () {
this.a = 1;
return "bbb"}
console.log (typeof new C());
也是object
除非return {} ,才是真正return的值,其他的都是object
1、
function C () {
this.a = 1;
return false; }
console.log (typeof new C());
object
function C () {
this.a = 1;
return "bbb"}
console.log (typeof new C());
也是object
除非return {} ,才是真正return的值,其他的都是object
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