What is javascript used for in 2024?

If you’re learning about web development or software engineering, you’ve likely encountered JavaScript. It’s a versatile programming language that’s been around for decades, but its uses continue to evolve. In this blog post, we’ll explore what JavaScript is used for in 2024, helping you understand its role in modern development.

At Codeworks, we specialize in teaching JavaScript because of its wide-ranging applications. Let’s look into why this language remains crucial for developers in 2024.

JavaScript in 2024: An Overview

Before we get into the details, here’s a quick summary of JavaScript’s main uses in 2024:

Web development (both frontend and backend)
Mobile app development
Server-side programming with Node.js
3D graphics and game development
AI and machine learning applications
Desktop application development

Now, let’s explore each of these areas in more depth.

1. Web Development: JavaScript’s Primary Domain

JavaScript was created for the web, and it continues to dominate this space in 2024.

Frontend Development

On the frontend, JavaScript is responsible for making websites interactive and dynamic. It’s used for:

Creating responsive user interfaces
Handling real-time updates
Implementing animations and transitions
Managing form validations

In 2024, we’re seeing increased use of Web Components and micro-frontends. These approaches allow developers to create more modular and maintainable codebases, mixing different technologies within the same application.

Backend Development

With the advent of Node.js, JavaScript moved to the backend. In 2024, it’s used for:

Building scalable web servers
Developing real-time applications (like chat systems)
Creating APIs and microservices
Implementing serverless functions for cloud computing

TypeScript, a typed superset of JavaScript, has gained significant traction in backend development. It provides stronger type-checking and improves the developer experience, especially in larger projects.

2. Mobile App Development

JavaScript has become a popular choice for mobile app development, thanks to frameworks like React Native and Ionic. These tools allow developers to create apps for both iOS and Android using a single codebase.

In 2024, the performance gap between native apps and those built with JavaScript has narrowed considerably. Many businesses now opt for JavaScript-based mobile development due to its cost-effectiveness and faster development cycles.

3. Server-Side Development with Node.js

Node.js has revolutionized server-side development, and its popularity continues to grow in 2024. It’s particularly well-suited for:

Building fast, scalable network applications
Developing real-time web applications
Creating microservices and APIs
Handling file uploads and data streaming

The latest versions of Node.js have brought significant performance improvements and new features. The adoption of ES modules has become widespread, leading to cleaner and more modular codebases.

4. 3D Graphics and Gaming

JavaScript is increasingly used for creating 3D graphics and games, especially for browser-based experiences. Libraries like Three.js and game engines like Babylon.js allow developers to create:

Browser-based 3D visualizations
Virtual reality (VR) and augmented reality (AR) experiences
Casual games and even some more complex titles
Interactive product demonstrations

The introduction of WebGPU has been a game-changer, enabling near-native 3D performance in the browser. This has led to more complex 3D applications and games built with JavaScript.

5. AI and Machine Learning

While Python remains dominant in AI and machine learning, JavaScript is making inroads, especially for client-side AI applications. In 2024, we’re seeing JavaScript used for:

Natural language processing in the browser (known as NLP)
Image and speech recognition
Predictive text and autocomplete features
Personalized user experiences based on ML models

TensorFlow.js, a JavaScript library for machine learning, has seen significant improvements. It now allows for more complex ML models to run efficiently in the browser, opening up new possibilities for privacy-preserving AI applications.

6. Desktop Application Development

JavaScript isn’t limited to web browsers. Frameworks like Electron and Tauri allow developers to create full-fledged desktop applications using web technologies. Some popular applications built with these technologies include Visual Studio Code, Discord, and Slack.

In 2024, Tauri, which uses Rust as its backend, has gained popularity. It offers smaller bundle sizes and better performance compared to Electron, making JavaScript-based desktop apps an even more attractive option.

Why Learn JavaScript?

Let’s be transparent: As a coding bootcamp, Codeworks specializes in JavaScript, which is central to our curriculum. While this might suggest a bias, our focus on JavaScript is rooted in its remarkable growth and versatility over the years. Here are some compelling reasons why we genuinely believe learning JavaScript is a valuable investment for aspiring developers:

Versatility: As we’ve seen, JavaScript can be used in a wide range of applications.
Strong Community: The JavaScript community is large and supportive, which is invaluable for both learning and problem-solving.
Continuous Innovation: The language and its ecosystem are constantly evolving, keeping the field exciting and relevant.
Job Opportunities: The demand for JavaScript developers remains high, with a wide variety of career paths available.
Accessibility: JavaScript is relatively easy to start with, but it also offers depth for those who want to dive into advanced concepts.

Take your first steps

If you’ve never coded before, enrol in our free intro course to learn the basic concepts of programming and JavaScript.

Free intro to JavaScript

Get familiar with JS syntax, while learning about variables, control flow, functions, objects, and classes. At the end of this course you’re able to solve simple coding challenges on your own, and ready to apply to Codeworks.