How can I effectively use advanced collections in my project?

How can I effectively use advanced collections in my project?

Advanced collections, like sets and maps, can optimize data handling. What specific use case do you have in mind?

I need to manage unique items and their counts.

You might consider using a Map to store items as keys and their counts as values. Would you like a code example?

Yes, please provide a code example.

Here's a simple example:

const itemCounts = new Map();

function addItem(item) {
    itemCounts.set(item, (itemCounts.get(item) || 0) + 1);
}

addItem('apple');
addItem('banana');
addItem('apple');
console.log(itemCounts);

This will count the occurrences of each item.