Review JavaScript Fundamentals by Building a Gradebook App - Step 4

JavaScript
1

Tell us what’s happening:

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

// Determine the student’s grade
// Determine the student’s grade
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) {

Your code so far

function getAverage(scores) {
  let sum = 0;

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

  return sum / scores.length;
}



// User Editable Region

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

  // Determine the student's grade
  // Determine the student's grade
  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 {
    grade = "F";
  }

  // Determine if the student passed or failed
  const passFail = studentScore >= 60 ? "passed" : "failed";

  // Return the message
  return `Class average: ${classAverage.toFixed(1)}. Your grade: ${grade}. You ${passFail} the course.`;
}

// Example function calls
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

Check out the code from line 1 to line 30 in this step. There are 3 functions you could re-use.