Review JavaScript Fundamentals by Building a Gradebook App - Step 4

JavaScript
1

Tell us what’s happening:

Why is it not accepting my if statement? when i try to add a parameter is returns an error.

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

// User Editable Region

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Challenge Information:

Review JavaScript Fundamentals by Building a Gradebook App - Step 4

2

What does this = do compared to ===?

What is hasPassingGrade?

3

that fixed the first line but now the A++ one is failing

4

What fixed what?

5

Your function call of studentMsg([56, 23, 89, 42, 75, 11, 68, 34, 91, 19], 100) should return the following message: "Class average: 50.8. Your grade: A++. You passed the course." .

this is my error msg. I dont see that logged anywhere. am i meant to log it myself? Even if i do that it returns an A++ grade as failed.

6

What code do you have? I can’t possibly guess with code I can’t see

7 
function studentMsg(totalScores, studentScore) {

if (hasPassingGrade === true) {

return "Class average: " + getAverage(totalScores) + ". Your grade: " + getGrade(studentScore) + ". You passed the course.";

} else {

return "Class average: " + getAverage(totalScores) + ". Your grade: " + getGrade(studentScore) + ". You failed the course.";

}

}

console.log(studentMsg([92, 88, 12, 77, 57, 100, 67, 38, 97, 89], 37));
8

You didn’t answer my second question, this one:

Or my first really

9

is that not the function to see if a student has passed, thus can be used in the if statement? Do i need to define it again as its a new function so i can call it in the if statement?

10

How do you use functions?

11

I passed. is it possible to do this without any let or const within the studentmsg function?

12

Yes

13

yeah thats what i don’t understand because if i did hasPassingGrade(studentScore) in the if condition it returned an error

14

What code did you have? What was the error?

I can’t guess without seeing

15

i believe it was this

16

And this code makes an error? What error?

17

it worked this time, must have had a lil something somwhere, thanks

1 Like
18

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