I am bit confused with one problem, the problem demands the following : the function min (a, b) to returns the number a if a <b, and returns the number b if b <a. .Take the following piece of code:

export default function min(a,b) {


   return a<b ? a:b;
}

let x =  min(2,5);
console.log(x);
let y = min(6,3);
console.log(y);

The code runs normally in IDE but when I try to pass it to gitlab via ubuntu it comes out undefined == 2. the test wants the following :

import min from "../test.js";
import assert from "assert";

describe("\n\ntest_", () => {
  it("should return 2 for [2,5]", () => {
    assert.equal(min([2, 5]), 2);
  });
  it("should return 3 for [6,3]", () => {
    assert.equal(min([6, 3]), 3);
  });
});

I can not understand why it does not pass.