What is FIFO caching in JavaScript?

What is FIFO caching in JavaScript?

FIFO caching, or First-In-First-Out caching, is a method where the oldest data is removed first when the cache reaches its limit.

How can I implement FIFO caching in my JavaScript application?

You can implement FIFO caching using an array to store the cache items and a limit to control the size. When adding a new item, check if the cache exceeds the limit and remove the oldest item.

Can you show me a code example?

Sure! Here's a simple example:

class FIFOCache {
    constructor(limit) {
        this.cache = [];
        this.limit = limit;
    }

    add(item) {
        if (this.cache.length >= this.limit) {
            this.cache.shift(); // Remove the oldest item
        }
        this.cache.push(item);
    }

    get() {
        return this.cache;
    }
}

This class allows you to add items and automatically manages the cache size.

What are the advantages of using FIFO caching?

FIFO caching is simple to implement and understand. It ensures that the most recently used data is kept in the cache while older data is removed, which can be effective for certain use cases.