Any particular reason why this switch-case statement in js is returning undefined?

Question

Here is my code. I have cross checked with online docs and couldn't find any reason for this to not work.

let marks = 90;
switch (marks) {
  case 1:
    if (marks <= 100 && marks >= 80) {
      console.log("Very Good");
    }
    break;
  case 2:
    if (marks >= 60 && marks <= 79) {
      console.log("Good");
    }
    break;
  case 3:
    if (marks >= 30 && marks <= 59) {
      console.log("Can do better");
    }
    break;
  case 4:
    if (marks < 30) {
      console.log("Fail");
    }
    break;
}