Before we head into learning JavaScript, let's discuss a couple of key points on why we want to do that.

 in the world of web development. It is the 

, meaning that every modern browser understands JavaScript without any plugins. It is the primary means for creating interactive and dynamic web pages.

Over the years, JavaScript has grown far beyond its humble beginnings. One of the major improvements has been the introduction of 

—a superset of JavaScript that adds static typing and other powerful features. TypeScript helps developers catch errors early and write more robust code, while still compiling to plain JavaScript.

. According to the StackOverflow 2024 Developer Survey, JavaScript topped the list of most-used languages with an impressive 

 of developers using it. This widespread use further solidifies its place as an essential tool for any web developer.

In addition to its general importance, JavaScript’s ecosystem has flourished. 

 have revolutionized how we build user interfaces, offering component-based architectures that make code modular and maintainable. React’s pervasiveness in both small projects and large applications shows just how much influence it holds.

 means that developers can now write a single codebase that runs on both the client and the server. This unified approach not only simplifies development but also promotes code reuse, making it easier to maintain and scale web applications.

With JavaScript under your belt you can extend your reach well beyond web applications. 

 empowers you to build cross-platform mobile apps for both iOS and Android using the same principles as React, while frameworks like 

 enable you to create desktop applications with web technologies. These tools showcase JavaScript’s versatility, allowing you to develop for frontend, backend, web, mobile and desktop—all with one language.

Before we head into learning JavaScript, let's discuss a couple of key points on why we want to do that.

## JavaScript is unique

JavaScript holds a **unique position** in the world of web development. It is the **native language of web browsers**, meaning that every modern browser understands JavaScript without any plugins. It is the primary means for creating interactive and dynamic web pages.

![](sanity:image-c5ba933f841b879166dc81c18d0796425b791937-778x362-png)

---

## TypeScript

Over the years, JavaScript has grown far beyond its humble beginnings. One of the major improvements has been the introduction of **TypeScript**—a superset of JavaScript that adds static typing and other powerful features. TypeScript helps developers catch errors early and write more robust code, while still compiling to plain JavaScript.

![](sanity:image-692e1815b8e1137948bc1e2f3fee0312ed872fce-932x433-png)

---

## Popularity

JavaScript is also incredibly **popular**. According to the StackOverflow 2024 Developer Survey, JavaScript topped the list of most-used languages with an impressive **62.3%** of developers using it. This widespread use further solidifies its place as an essential tool for any web developer.

![](sanity:image-02eefe141af1c0e21be6ea55d96f1b44c8afd9ad-1137x508-png)

---

## Frontend frameworks

In addition to its general importance, JavaScript’s ecosystem has flourished. **Modern frontend frameworks** like **React** have revolutionized how we build user interfaces, offering component-based architectures that make code modular and maintainable. React’s pervasiveness in both small projects and large applications shows just how much influence it holds.

![](sanity:image-53de445e2e5f021046d1b16a39f18da8f73a5b62-400x100-png)

---

## Full-stack frameworks

Furthermore, the rise of **full-stack JavaScript frameworks** like **NextJS** means that developers can now write a single codebase that runs on both the client and the server. This unified approach not only simplifies development but also promotes code reuse, making it easier to maintain and scale web applications.

![](sanity:image-a2466b08d53bf1a8ae58af33cc981fba418a86d3-3000x1800-png)

---

## Beyond the Web

With JavaScript under your belt you can extend your reach well beyond web applications. **React Native** empowers you to build cross-platform mobile apps for both iOS and Android using the same principles as React, while frameworks like **Electron** enable you to create desktop applications with web technologies. These tools showcase JavaScript’s versatility, allowing you to develop for frontend, backend, web, mobile and desktop—all with one language.

![](sanity:image-d4a04d48534dc02dd5d6c3a39448f03b21615322-800x490-png)

---

## Convinced?

Let's dive in!


Why JavaScript?

Learn programming with JavaScript, arguably the most important and versatile programming language in today's world, at least for web development.

Welcome to Hakatemia’s beginner-friendly JavaScript course, where you will learn the fundamentals of programming with JavaScript. In today’s world, JavaScript is one of the most popular and versatile programming languages—especially in web development, where it holds a unique position: no other programming language can run both in the browser and on the server. For this reason, JavaScript has become extremely popular and is used for developing user interfaces (React, Vue, Angular, Svelte, etc.), back-end systems (NodeJS/Express, HAPI, etc.), and full-stack solutions (NextJS, NuxtJS, etc.).

These JavaScript frameworks will be covered in later Hakatemia courses, but before we get there, we must first master the basics of JavaScript programming. This course is designed precisely for that purpose.

Throughout the course, you’ll learn core programming concepts such as variables, operators, conditional statements, functions, arrays, and objects. Each module is divided into small, manageable segments with plenty of practical exercises.

This course is being released as a beta—the first part of Hakatemia’s comprehensive web development curriculum—and it is the first course that uses Hakatemia’s new programming exercise environment. Please provide feedback using the button at the bottom of the page or on Discord if you encounter any issues!

Why JavaScript?

JavaScript is unique

Learn to hack — start here