Average Grades (Archive Objects & Classes)

function solve(input) {
  class Student {
    constructor(name, grades) {
      this.name = name;
      this.grades = grades;
      this.average = 0;
    }

    getAverage() {
      this.average = this.grades.reduce((a, b) => a + b) / this.grades.length;
    }
  }

  let count = Number(input.shift());

  let data = input.slice(0).filter(x => x !== "");
  let list = [];
  for (const line of data) {
    let grades = line.split(" ");
    let name = grades.shift();
    let student = new Student(name, grades.map(Number));
    student.getAverage();
    list.push(student);
  }

  list
    .filter(x => x.average >= 5)
    .sort((a, b) => {
      if (a.name.localeCompare(b.name) === 0) {
        return b.average - a.average;
      }
      return a.name.localeCompare(b.name);
    })
    .forEach(student => {
      console.log(`${student.name} -> ${student.average.toFixed(2)}`);
    });
}