Review JavaScript Fundamentals by Building a Gradebook App - Step 4

JavaScript
1

Tell us what’s happening:

I cant find the error
below is my code…

function studentMsg(totalScores, studentScore)
{
let average = getAverage(totalScores);
let score = getGrade(studentScore);

if (score >= average){
  return "Class average: "  + average + " Your grade:" + score  + "  You passed the course.";
}else{
  return "Class average: "  + average + " Your grade:" + score  + "  You failed the course.";
}

}
console.log(studentMsg([92, 88, 12, 77, 57, 100, 67, 38, 97, 89], 37));

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)
 {
   let average = getAverage(totalScores);
   let score =   getGrade(studentScore);

    if (score >= average){
      return "Class average: "  + average + " Your grade:" + score  + "  You passed the course.";
    }else{
      return "Class average: "  + average + " Your grade:" + score  + "  You failed the course.";
    }
}
console.log(studentMsg([92, 88, 12, 77, 57, 100, 67, 38, 97, 89], 37));

// 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/135.0.0.0 Safari/537.36

Challenge Information:

Review JavaScript Fundamentals by Building a Gradebook App - Step 4

2

Let’s do some debugging!

The first failed test is

studentMsg([92, 88, 12, 77, 57, 100, 67, 38, 97, 89], 37) should return the following message: "Class average: 71.7. Your grade: F. You failed the course." .

So we can take the two values in this test, and put them in console.logs below our code:

console.log(studentMsg([92, 88, 12, 77, 57, 100, 67, 38, 97, 89], 37));
console.log("Class average: 71.7. Your grade: F. You failed the course.");

if we look at the console now we can see

Class average: 71.7 Your grade:F  You failed the course.
Class average: 71.7. Your grade: F. You failed the course.

the first line is from your function, the second is the expected value.
There are a few differences, you need to fix those differences. Can you take it from here?

1 Like