code. compile. run. debug. share.
class NaiveUniqueCounter {
#set = new Set();
add(element) {
this.#set.add(element);
}
count() {
return this.#set.size;
}
}
const counter = new NaiveUniqueCounter();
counter.add("ananas");
counter.add("banan");
counter.add("jablko");
counter.add("jablko");
counter.add("ananas");
console.log("Unikalnych elementów: ", counter.count());
// Unikalnych elementów: 3
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