tinhDiem.js

function kiemtra(mon1, mon2, mon3, khuVuc, doiTuong, diemChuan) {
  if (mon1 * mon1 * mon3 === 0) return "Rớt";

  let tongDiem = mon1 + mon2 + mon3;
  const diemCongThemKhuVuc = {
    A: 2,
    B: 1,
    C: 0.5,
  }[khuVuc];
  tongDiem += diemCongThemKhuVuc;

  const diemCongThemDoiTuong = {
    1: 2.5,
    2: 1.5,
    3: 1,
  }[doiTuong];
  tongDiem += diemCongThemDoiTuong;

  return tongDiem >= diemChuan ? "Đậu" : "Rớt";
}
kiemtra(4, 5, 10, "C", 2, 15);

/**
 *
 * @param {*} mon1 : number
 * @param {*} mon2 : number
 * @param {*} mon3 : number
 * @param {*} khuVuc : "A" | "B" | "C"
 * @param {*} doituong : 1 | 2 | 3
 * @param {*} diemChuan : number <= 30
 *
 */

const KHU_VUC_MAPPING = {
  A: 2,
  B: 1,
  C: 0.5,
};

const DOI_TUONG_MAPPING = {
  1: 2.5,
  2: 1.5,
  3: 1,
};

function kiemtra(mon1, mon2, mon3, khuVuc, doiTuong, diemChuan) {
  if (mon1 * mon1 * mon3 === 0) return "Rớt";

  let tongDiem = mon1 + mon2 + mon3;

  tongDiem += KHU_VUC_MAPPING[khuVuc];
  tongDiem += DOI_TUONG_MAPPING[doiTuong];

  return tongDiem >= diemChuan ? "Đậu" : "Rớt";
}
kiemtra(4, 5, 10, "C", 2, 15);