function getAverage(scores) {
if (scores.length === 0) return 0;
const total = scores.reduce((sum, score) => sum + score, 0);
return total / scores.length;
}
function getGrade(score) {
if (score === 100) return “A+”;
if (score >= 90) return “A”;
if (score >= 80) return “B”;
if (score >= 70) return “C”;
if (score >= 60) return “D”;
return “F”;
}
function hasPassingGrade(score) {
return getGrade(score) !== “F”;
}
function studentMsg(scoresArray, studentScore) {
const average = getAverage(scoresArray);
const averageRounded = parseFloat(average.toFixed(1));
const grade = getGrade(studentScore);
if (hasPassingGrade(studentScore)) {
return Class average: ${averageRounded}. Your grade: ${grade}. You passed the course.
} else {
return Class average: ${averageRounded}. Your grade: ${grade}. You failed the course.
}
}
console.log(studentMsg([56, 23, 89, 42, 75, 11, 68, 34, 91, 19], 100));
console.log(studentMsg([92, 88, 12, 77, 57, 100, 67, 38, 97, 89], 37));