....I still don't understand why the code outputs 11. Please help me explain the reason for its output as 11

Question

function foo(a) {
var b = 5;
function bar(a) {
return b + a;
}
return bar(b++);
}
console.log(foo(8));

Answer 1

foo(8) assigns 5 to b
bar(b++) =
incremented b (=6) + b++(=5++)
we know that 6 + 5++ = 11
hence the function returns 11

Answer 2

return bar(b++) calls "bar(6)" function.

Which returns (a + b) or (5 + 6)..

Answer 3

Thanks Aravind Shetty, for that explanation, it was the "8" in the "foo(8)" that was putting me off

Answer 4

WTF this((((( OMG