There are the following two pieces of code, the results

Question

There are the following two pieces of code, the results

of execution are the same, but what is the difference between the two pieces of code?

var scope = "global scope";
function checkscope(){
var scope = "local scope";
function f(){
return scope;
}
return f();
}
checkscope();
---------------------------------------
var scope = "global scope";
function checkscope(){
var scope = "local scope";
function f(){
return scope;
}
return f;
}
checkscope()();

0

15.04.2021

2 ответов

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Velan Chandrasekar

I guess the 1st one returns the value, returned by the function f() - after executing it. And, the 2nd one just returns the function f().

0

15.04.2021

Thomas · Accepted Answer

Thomas

The difference is that in one you have return f();, and the other you have return f;

0

15.04.2021

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