[Solved] JS: Grading System of a school Any Fix (Error== undefined) [closed]

by 


// Rule 1: Kinda keep it simple 
// As total marks are going to be 100 so no need for a percentage method

const school_grading_system = () => {
  let student_details = {
    name_of_student: prompt("Enter your name:"),
    roll_number_of_student: Number(prompt("Enter your Roll No: ")),
    marks_of_student: Number(prompt("Enter your marks out of 100: "))

  }
  if (student_details.marks_of_student >= 45 && student_details.marks_of_student < 50) {
    return "Grade D"
  } else if (student_details.marks_of_student >= 50 && student_details.marks_of_student < 60) {
    return "Grade C"
  } else if (student_details.marks_of_student >= 60 && student_details.marks_of_student < 80) {
    return "Grade B"
  } else if (student_details.marks_of_student >= 80 && student_details.marks_of_student <= 100) {
    return "Grade A"
  }
}
console.log(school_grading_system())


// Note: I have not displayed the name and marks stuff because I hope you are capable enough to do that so I am leaving that upon you

solved JS: Grading System of a school Any Fix (Error== undefined) [closed]