Can anybody explain me the output of this code?

Question

This is the code I am compiling.

var a = 10;
var c = 5;
b(40);

function b(x) {
  a(20);
  a=40;
  c=50;
  function a() { console.log(x);}  
}

console.log(a);
console.log(c);

Can you tell me the output and explain it?

Answer 1

40 10 50

First b(40) will be executed. Then a(20) which will ignore the 20 and print the x (currently 40). Then a will be set to 40 and c to 50. Then both of them will be printed in line 12 and 13.

Answer 2

40 10 50

the second one is 10 bc the a declared in b() isn't the same var as the one declared in the beginning (just execute the code).