Review JavaScript Fundamentals by Building a Gradebook App - Step 4

JavaScript
1

Tell us what’s happening:

Can you help me in returning the class average and the scores respectfully into my code . It’s saying I have to return this but. My studentMsg function should return the correct message based on the student’s score and the class average and I don’t understand how I should return it do you have and suggestions.

Your code so far

function getAverage(scores) {
  let sum = 0;

  for (const score of scores) {
    sum += score;
  }

  return sum / scores.length;
}

function getGrade(score) {
  if (score === 100) {
    return "A++";
  } else if (score >= 90) {
    return "A";
  } else if (score >= 80) {
    return "B";
  } else if (score >= 70) {
    return "C";
  } else if (score >= 60) {
    return "D";
  } else {
    return "F";
  }
}

function hasPassingGrade(score) {
  return getGrade(score) !== "F";
}

// User Editable Region

function studentMsg(totalScores, studentScore) {
    // Calculate the average score
    const averageScore = totalScores.reduce((sum, score) => sum + score, 0) / totalScores.length;

    // Determine the student's grade based on their score
    let grade;
    if (studentScore >= 90) {
        grade = "A++";
    } else if (studentScore >= 80) {
        grade = "A";
    } else if (studentScore >= 70) {
        grade = "B";
    } else if (studentScore >= 60) {
        grade = "C";
    } else if (studentScore >= 50) {
        grade = "D";
    } else if (studentScore >= 40) {
        grade = "E";
    } else {
        grade = "F";
    }

    // Determine if the student passed or failed
    const status = grade === "F" ? "You failed the course." : "You passed the course.";

    // Return the message
    return `Class average: ${averageScore.toFixed(1)}. Your grade: ${grade}. ${status}`;
}

console.log(studentMsg([92, 88, 12, 77, 57, 100, 67, 38, 97, 89], 37)); // This should return: "Class average: 71.7. Your grade: F. You failed the course."
console.log(studentMsg([56, 23, 89, 42, 75, 11, 68, 34, 91, 19], 100)); // This should return: "Class average: 50.8. Your grade: A++. You passed the course."



// User Editable Region

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Challenge Information:

Review JavaScript Fundamentals by Building a Gradebook App - Step 4

2

you already have a function to give you the average.
Just use it instead of trying to re-calculate the average.

Same comment for the grade. You already have a function for that.