How can I implement asynchronous data structures in my application?

How can I implement asynchronous data structures in my application?

You can use data structures like queues and stacks with async/await in JavaScript. Would you like a code example?

Yes, please provide a code example for an asynchronous queue.

Here's a simple implementation of an async queue in JavaScript:

class AsyncQueue {
    constructor() {
        this.queue = [];
        this.resolvers = [];
    }

    async enqueue(item) {
        this.queue.push(item);
        if (this.resolvers.length > 0) {
            this.resolvers.shift()(item);
        }
    }

    async dequeue() {
        if (this.queue.length > 0) {
            return this.queue.shift();
        }
        return new Promise(resolve => this.resolvers.push(resolve));
    }
}

This allows you to enqueue and dequeue items asynchronously.

How does this implementation handle concurrency?

The implementation allows multiple consumers to wait for items to be available in the queue, handling concurrency by using promises.