What are some real-world examples of queues in JavaScript?

What are some real-world examples of queues in JavaScript?

Queues are data structures that follow the First In First Out (FIFO) principle. In JavaScript, you can find queues in various real-world applications. For instance, web servers use queues to manage incoming requests, ensuring they are processed in the order they arrive.

Can you give me more specific examples?

Sure! One example is the event loop in JavaScript, which uses a queue to handle asynchronous tasks. Another example is the task queue in a browser, where tasks like rendering and user interactions are queued for processing.

How do I implement a queue in JavaScript?

You can implement a queue using an array. You can use the push() method to add items to the end and shift() to remove items from the front. Here's a simple example:

class Queue {
    constructor() {
        this.items = [];
    }
    enqueue(item) {
        this.items.push(item);
    }
    dequeue() {
        return this.items.shift();
    }
    isEmpty() {
        return this.items.length === 0;
    }
}