Demo: Student Register with map

This is the worked run before your practical challenge. filter selects active records and map converts each selected record into a display-ready entry.

const students = [
  { name: "Ari", course: "JavaScript", active: true },
  { name: "Bea", course: "CSS", active: false }
];

const register = students
  .filter((student) => student.active)
  .map((student) => `${student.name}: ${student.course}`);

console.log(register.join(" | "));

What to notice

Run the example once, then trace the first two steps by hand. The next lesson gives you the same idea with a fresh problem to solve.