Drill 28: Summarise — Closures and higher-order functions

function makeCounter() {
  let count = 0;
  return () => ++count;
}

const next = makeCounter();
console.log(next(), next(), next());

const scores = [88, 92, 79, 95];
const passed = scores.filter((score) => score >= 80);
const curved = scores.map((score) => Math.min(100, score + 3));
const total = scores.reduce((sum, score) => sum + score, 0);

console.log(passed);
console.log(curved);
console.log(total, Math.round(total / scores.length));