Review JavaScript Fundamentals by Building a Gradebook App - Step 4

JavaScript
1

Tell us what’s happening:

Your studentMsg function should return the correct message based on the student’s score and class average. I’m confused here I tried every possible way to complete this final course on this subject and still I find it very difficult to accomplish.

Your code so far

function studentMsg(totalScores, studentScore) {
function getAverage(scores) {
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";
}

// Calculate the class average
const classAverage = getAverage(totalScores);

// Get the student's grade
const studentGrade = getGrade(studentScore);

// Determine if the student passed or failed
const passed = studentGrade !== "F";

// Build the message
let message = "Class average: " + classAverage.toFixed(1) + ". Your grade: " + studentGrade + ". ";
message += passed ? "You passed the course." : "You failed the course.";

return message;

}

// Example usage
console.log(studentMsg([92, 88, 12, 77, 57, 100, 67, 38, 97, 89], 37)); // “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)); // “Class average: 50.8. Your grade: A++. You passed the course.”

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) {
    function getAverage(scores) {
        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";
    }

    // Calculate the class average
    const classAverage = getAverage(totalScores);
    
    // Get the student's grade
    const studentGrade = getGrade(studentScore);
    
    // Determine if the student passed or failed
    const passed = studentGrade !== "F";
    
    // Build the message
    let message = "Class average: " + classAverage.toFixed(1) + ". Your grade: " + studentGrade + ". ";
    message += passed ? "You passed the course." : "You failed the course.";
    
    return message;
}

// Example usage
console.log(studentMsg([92, 88, 12, 77, 57, 100, 67, 38, 97, 89], 37)); // "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)); // "Class average: 50.8. Your grade: A++. You passed the course."


// User Editable Region

Your browser information:

User Agent is: Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/127.0.0.0 Safari/537.36 Edg/127.0.0.0

Challenge Information:

Review JavaScript Fundamentals by Building a Gradebook App - Step 4

2

You should not make duplicate versions of these functions