Introduction To Javascript

Javascript is one of the major parts of web development in today's time. It is one of the three core languages used to develop websites. It lets you add functionality and behaviors to your website, allowing your website’s visitors to interact with content in many imaginative ways.

In September 1995, It was developed by a Netscape programmer named Brandan Eich. It was originally named Mocha, but quickly became known as LiveScript and, later, JavaScript.

Photo: Brandan Eich at an event.

Since then Javascript is everywhere. Javascript is always known for developing itself by adding new libraries and frameworks.

Introduction To Javascript Runtime

A javascript runtime environment is where your program will be executed. Javascript code may be executed in one of two runtime environments:

• a browser’s runtime environment

• the Node runtime environment

Node.js

Picture Source:thirdrocktechkno.com/blog/most-prominent-no..

Node.js is a JavaScript runtime built on Chrome's V8 JavaScript engine. This allows Node.js to be very performant. Node.js runs in a single thread, it doesn't create a new thread for every new request.

Node.js has a unique advantage because millions of frontend developers that write JavaScript for the browser are now able to write the server-side code in addition to the client-side code without the need to learn a completely different language.

Node.js has become popular in the last 4 years and tends to remain the same in 2022. It has made the work of small new startups and developers very easy.

Picture Source:thirdrocktechkno.com/blog/most-prominent-no..

According to the above data by 'statista.com', more than 50% of the developers use Node.js in their projects.

Deno.js

In 2018, Ryan Dahl (The Developer of Node.js) discussed his major regrets about Node.js. These shortcomings and regards lead to the development of Deno.js which he released in 2020.

Deno.js was undoubtedly more secure and faster than Node.js. But still, Demo didn't gain the expected popularity and adoption because most of the already existing systems were already Node.js based and change can be a pain for developers.

Bun.js

In July 2022, a new runtime appeared in beta -- "Bun.js" -- which has been a trending topic in and out of the JavaScript community. The interoperability with Node.js and high-speed performance it claims to offer have been the showpiece. It has also raised discussions that there’s finally a “Node-destroyer” around. Picture Source: bun.sh

Bun is a modern JavaScript runtime like Node or Deno. It was built from scratch to focus on three main things:

1. Start fast
2. New levels of performance
3. Being a great and complete tool

How does bun compare to Deno and Node?

Node, Deno, and Bun are all runtimes for JavaScript outside the browser, this doesn’t neutralize the differences between them.

Bun.js takes features from Deno.js, like shipping as a single binary and having native TypeScript support.

Data Source: semaphoreci.com/blog/javascript-bun

Compared to Node, Bun offers more features while striving to still be compatible:

Data Source: semaphoreci.com/blog/javascript-bun

What Is the Future of Node.js and Deno.js?

Node is still regularly updated, therefore its future remains intact even with Deno and Bun around. Many companies like PayPal use Node in their infrastructures, and even new startups are following suit.

The case is similar for Deno, which is actively developed and growing bigger. Deno is also advancing into a SaaS solution to provide managed JavaScript runtime services.

Therefore, the release of Bun will not affect the existence of Node and Deno.

Will Bun.js Impact the Ecosystem?

All the web developers around the world are excited by Bun’s release. The hype around Bun has been huge since the announcement. It is absolutely such a big deal. JavaScript developers would really love it considering its “blazing” speed and robust tooling for productivity.

Furthermore, Bun’s Discord server already has over 2000 members which proves the excitement in the community for this new technology.

Conclusion

Bun.js can really be a game changer in the future because of its features and amazing speed. With Bun, a lot of things might get better about JavaScript.

Will it replace Node and Deno? Well, it's certainly really early to say that. But Bun certainly has a very promising future.

You can learn to install Bun by its Github or by visiting its Website.