JavaScript is a programming language that is commonly used in web development. It is a high-level, dynamic, and interpreted programming language that is supported by modern web browsers. JavaScript is used to make web pages interactive and to create web applications.

JavaScript is often used in conjunction with HTML and CSS to create the front-end of a web application. It is also used on the server side, with the use of platforms such as Node.js.

JavaScript is a powerful and versatile language that is widely used in the development of web applications and is an important skill for any web developer to have.

Why Learn JavaScript?

There are several reasons why learning JavaScript is a good idea:

  1. Widely used: JavaScript is the most widely used programming language for web development, and is supported by all modern web browsers.
  2. Versatile: JavaScript can be used for a wide range of applications, including front-end web development, back-end server-side development, mobile app development, and game development.
  3. In-demand: JavaScript is in high demand among employers, and a strong understanding of the language can lead to lucrative job opportunities in the tech industry.
  4. Easy to learn: JavaScript is a high-level language, which means it is relatively easy to learn and read compared to other programming languages.
  5. Continuously evolving: The JavaScript community is active and constantly working to improve the language and add new features, making it an exciting language to learn and stay up-to-date with.

Overall, learning JavaScript can open up many doors for your career in tech, and is a valuable skill to have as a web developer.

How Does It Work?

There are many ways to learn JavaScript, and the best approach for you will depend on your learning style and goals. Here are a few options to consider:

  1. Online tutorials and courses: There are many online resources available for learning JavaScript, including free tutorials and paid courses. These can be a good option for those who prefer to learn at their own pace.
  2. Books: There are many books available on JavaScript, ranging from beginner to advanced levels. This can be a good option for those who prefer to learn through reading and practice.
  3. In-person classes: If you prefer a more structured learning environment, you may want to consider taking an in-person class or workshop.
  4. Practice: As with any skill, the best way to learn JavaScript is through practice. As you work through tutorials and learn new concepts, try building small projects to apply what you’ve learned. This will help you solidify your understanding and gain practical experience.

Regardless of which approach you choose, it’s important to be consistent and dedicated in your learning efforts. With time and practice, you will become proficient in JavaScript.

Let’s return to the first issue, which was how to sort an array of arrays.

Here is a case that you have already seen.

Simple Javascript Program To Print Hello World

To print “Hello World” using JavaScript, you can use the following code:

					console.log("Hello World");


This code will print “Hello World” to the console, which you can view in your web browser’s developer tools.

To run this code, you will need to include it in a JavaScript file or embed it in an HTML file and open the file in a web browser.

For example, you can create an HTML file with the following content:

					<!DOCTYPE html>
    console.log("Hello World");


Save this file as “index.html” and open it in a web browser. You should see “Hello World” printed in the console.

Alternatively, you can create a JavaScript file with the following content:

					console.log("Hello World");


Save this file as “hello.js” and include it in an HTML file using a script tag:

					<!DOCTYPE html>
  <script src="hello.js"></script>


Open the HTML file in a web browser, and you should see “Hello World” printed in the console.

Thanks for reading. Happy coding!