script.js

const soundA = new Audio("sounds/A.mp3.mp3");
const soundB = new Audio("sounds/B.mp3.mp3");
const soundC = new Audio("sounds/C.mp3.mp3");
const soundD = new Audio("sounds/D.mp3.mp3");
const soundE = new Audio("sounds/E.mp3.mp3");
const soundFail = new Audio("sounds/fail.mp3.mp3");
function checkGrade() {
  let gradeValue = document.getElementById("grade").value;
  let grade = parseInt(gradeValue);
  let show = document.getElementById("show");

  if (grade < 0 || grade > 100) {
    show.innerHTML = "Your score is Invalid";
  } else if (grade == 0 || grade < 40) {
    show.innerHTML = "You scored F";
    soundFail.play();
  } else if (grade >= 40 && grade < 45) {
    show.innerHTML = "You scored E";
    soundE.play();
  } else if (grade >= 45 && grade < 50) {
    show.innerHTML = "You scored D";
    soundD.play();
  } else if (grade >= 50 && grade < 60) {
    show.innerHTML = "You scored C";
        soundC.play();
  } else if (grade >= 60 && grade < 70) {
    show.innerHTML = "You scored B";
    soundB.play();
  } else if (grade >= 70 && grade <= 100) {
    show.innerHTML = "You scored A";
    soundA.play();
  }
};