JavaScript
CHALLENGE
class Counter {
#count = 0;
static #instances = 0;
constructor() { Counter.#instances++; }
#increment() { this.#count++; }
incrementAndGet() {
this.#increment();
return this.#count;
}
static get total() { return Counter.#instances; }
}
class SpecialCounter extends Counter {
incrementAndGet() {
return super.incrementAndGet() * 2;
}
}
const c1 = new Counter();
const c2 = new SpecialCounter();
console.log(`${c1.incrementAndGet()} ${c2.incrementAndGet()} ${Counter.total}`);
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