Everything About the Newly Launched Node.js 19 Summarized

Attention all the Node.js users. The latest version, Node.js 19, is out in the market and is making high waves because of some exceptional features and capabilities. As we all know, Node.js is an admirable JavaScript runtime environment that disappoints none. 

To provide only updated capabilities, Node.js offered timely version updates. Even though almost every technology provides version releases, Node.js goes a step ahead by rolling down the version updates after every 6 months. 

The most recent version, Node.js 19, is already released and replaced the previous version, Node.js 18, impressively. Node.js 19 will remain the latest release until April 2023. As you’re going to use the recent release anyhow, you must understand which features set it apart and how it’s going to empower you. 

Node.js 19 – New Version With Powerful Features  

With Node.js 19 release, Node.js continued its tradition of fixing previous issues and imparting new capabilities. Have a look at the exceptional features of Node.js 19. 

  • HTTP(S)/1.1 KeepAlive by default 

This latest release will fix many Nodejs performance issues as it sets keepAlive to true by default. Now, what does it mean? Basically, this feature ensures that every HTTP connection will have an active HTTP 1.1 Keep-Alive status for 5 seconds during outgoing connection. 

With this feature, one will experience improved outcomes as connections are now reused automatically. Also, the agent of this updated version is capable of parsing KeepAlive responses, shared by servers. 

  • More Stable WebCrypto

WebCrypto API is part of Node.js and is widely used to develop cryptography-based systems. In the latest release, WebCrypto API is stable. 

  • No Support For DTrace/SystemTap/ETW Support

There is no support offered for DTrace/SystemTap/ETW in the new Node.js version. This isn’t a random reason. But it’s a strategic move based on facts. 

Over the years, there has been a huge dip in the popularity of DTrace, SystemTap, or ETW. In fact, there is hardly any evidence available supporting the fact that they are very much in use. Hence, Node.js doesn’t want to invest in something that is not useful. 

Also, these tools are very tedious to manage. There is no point in investing efforts, time, and resources in tools that end users do not love. Hence, support is discontinued, and we think that it’s a great move to make.

  • Updated JavaScript Engine 

The V8 JavaScript engine is also updated. The latest release features a V8 10.7 engine that features Intl.NumberFormat function. This function works for language-sensitive number formatting.

  • Diagnostic Channel 

Diagnostics are better than before as diagnostic channel events are now added for workers and processes.

  • Customized ESM Resolution Adjustments  

The –experimental-specifier-resolution flag no longer exists in the latest Node.js 19 version. One can attain this functionality using custom loaders.

  • llhttp 8.1.0

llhttp is also updated to version 8.1.0. Honestly speaking, the new version brings many llhttp API updates so that it’s easy to make new callbacks and pause them whenever it’s required. 

What Will Happen To Node.js 18?

Before you switch to Node.js 19, you must be using Node.js 18, and you should know its fate now as the new version is here. Well, it has been promoted to LTS. 

How To Switch to the New Node.js Version?

After reading about all these features and updates, you must be eager to switch to this version soon. Here is how you can do it:

  • Use NVM to switch to the latest version. 
  • Run the command to install the latest version of Node.js: % nvm install 19.0.0
    Use any window and run the below-mentioned command to use the latest version: % nvm use 19.
  • You’re now ready to explore the latest version. Try this command to confirm the same: % node –version

It’s as simple as that.

Relish Over The Benefits Of the Latest Version 

We have no hesitation in deducing that Node.js is a leading development resource to own. With a new version released every six months, it ensures that you have your hands only on the updated and modern technology. 

The latest version, Node.js 19, is impressive as new features and capabilities are added.  Start using it in your development project and make the most of its power. If you’re having any trouble exploring the full power of Node.js 19, we suggest you outsource professional help. 

Hire Node.js developer today and develop interactive, engaging, and powerful solutions. With the right choices, you can make the most of your new abilities. 

Author Bio :-

Chandresh Patel is a CEO, Agile coach and founder of Bacancy Technology. His truly entrepreneurial spirit, skillful expertise and extensive knowledge in the Agile software development services has helped the organization to achieve new heights of success. Chandresh is fronting the organization into global markets in a systematic, innovative and collaborative way to fulfill custom software development.