DeveloperBreeze

Factory Pattern Development Tutorials, Guides & Insights

Unlock 1+ expert-curated factory pattern tutorials, real-world code snippets, and modern dev strategies. From fundamentals to advanced topics, boost your factory pattern skills on DeveloperBreeze.

Advanced JavaScript Patterns: Writing Cleaner, Faster, and More Maintainable Code

Tutorial August 27, 2024
javascript

The Singleton Pattern restricts the instantiation of a class to a single instance. This pattern is particularly useful when you need to coordinate actions across the system.

const Singleton = (function() {
    let instance;

    function createInstance() {
        const object = new Object('I am the instance');
        return object;
    }

    return {
        getInstance: function() {
            if (!instance) {
                instance = createInstance();
            }
            return instance;
        }
    };
})();

const instance1 = Singleton.getInstance();
const instance2 = Singleton.getInstance();

console.log(instance1 === instance2); // Output: true