recently, when I was looking at the design pattern, I encountered a problem about closures. I can"t figure it out. Ask for help. The code is as follows:
function foo(){
var a = 10;
function bar(){
a*= 2;
return a;
}
return bar;
}
var baz = foo();
console.log(baz.toString());
var blat = foo();
console.log(blat.toString());
console.log(baz==blat)
printed result:
:
:
aaccbazblatvar baz = foo();
var blat = foo();
returnbaz = foo();
returnthe first paragraph of code does not point to the same reference. If you call foo, twice, each call will define a new bar function
baz and blat don't point to the same reference, do you
pay attention to the difference in performing assignments, although I can't explain it very well, if anyone makes sense to you, Remember to tell me about
Brother. The closure you first wrote returns the function body, but you don't write a function body. The two are not comparable at all.
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