let f1;
let f2;
let f3;

for (let i = 1; i < 4; i = i + 1) {
  let j = i;
  fn f() {
    println i;
    println j;
  }

  if (j == 1) {
    f1 = f;
  } else if (j == 2) { 
    f2 = f;
  } else { f3 = f; }
}

f1(); // out: 4
      // out: 1
f2(); // out: 4
      // out: 2
f3(); // out: 4
      // out: 3