"use strict";
function calculateGrade() {
let score = document.getElementById("score").value;
let grade = gradeCalculator(parseInt(score));
document.getElementById("gradeResult").innerText = "Grade: " + grade;
}
function calculateCircleArea() {
let radius = document.getElementById("radius").value;
let area = calculateArea(parseFloat(radius));
document.getElementById("areaResult").innerText = "Area: " + area.toFixed(2);
}
function reverseInputString() {
let str = document.getElementById("string").value;
let reversed = reverseString(str);
document.getElementById("reverseResult").innerText = "Reversed String: " + reversed;
}
function gradeCalculator(score) {
if (score >= 90 && score <= 100) {
return "A";
} else if (score >= 80 && score <= 89) {
return "B";
} else if (score >= 70 && score <= 79) {
return "C";
} else if (score >= 60 && score <= 69) {
return "D";
} else {
return "F";
}
}
function calculateArea(radius) {
const pi = 3.14159;
return pi * radius * radius;
}
function reverseString(str) {
return str.split("").reverse().join("");
}