Classes and Object in ES6

class Student {

    constructor(id, name, score) {
        this.id = id;
        this.name = name;
        this.score = score;
    }

}

let student1 = new Student();
student1.id = 'st01';
student1.name = 'name 1';
student1.score= 5.6;
console.log('Student 1 Info');
console.log('id: ' + student1.id);
console.log('name: ' + student1.name);
console.log('score: ' + student1.score);

let student2 = new Student('st02', 'name 2', 8.9);
console.log('Student 2 Info');
console.log('id: ' + student2.id);
console.log('name: ' + student2.name);
console.log('score: ' + student2.score);

Output

Student 1 Info 
id: st01 
name: name 1 
score: 5.6 

Student 2 Info 
id: st02 
name: name 2 
score: 8.9