Log values based on input

JavaScript

let x = 4;
switch (x) {
  case delta(1):
    console.log("case 1");
    break;
  case delta(2):
    console.log("case 2");
    break;
  case delta(3):
    console.log("case 3");
    break;
  case delta(4):
    console.log("Beta");
    break;
  default:
    console.log("BabaYaga", x);
}

function delta(x) {
  console.log("Babayaga", x);
  return x;
}