As it is right now, when the calculateAverageScore() function gets executed, since the students.size is zero, it will cause a java.lang.ArithmeticException: / by zero 💥
calculateAverageScore()
students.size
java.lang.ArithmeticException: / by zero
To avoid this you can use average function from stdlib, so istead of this:
fun calculateAverageScore(students: Array<Student>) = students.sumBy { it.score } / students.size
You can write:
fun calculateAverageScore(students: Array<Student>) = students.map { it.score }.average()
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As it is right now, when the
calculateAverageScore()function gets executed, since thestudents.sizeis zero, it will cause ajava.lang.ArithmeticException: / by zero💥To avoid this you can use average function from stdlib, so istead of this:
You can write: