Deno Vs Node.js- A Comparison You Need To Know
Tags: deno, node
Published: 2021-06-11 07:39:10

If you are using Node.js but don’t like its package manager npm, or want a more secure Javascript runtime environment than Node.js, then Deno is for you. It is a program for running Javascript and Typescript code outside of a browser. It is an attempt to reimagine Node.js with the advances in Javascript since 2009, including Typescript compiler. Like Node.js, Deno is basically a shell around the Google V8 JavaScript engine, although dissimilar to Node.js it includes the TypeScript compiler for its executable image. If you are still confused between Deno and Node.js, then this article is for you. Here we’ll discuss the comparison of Deno and Node.js. But before digging to the comparison let’s see the overview of each one.

#Deno-
It executes Typescript and JavaScript to asynchronous desktop servers and apps. Deno is the new implementation which uses modern features of JS language. It is a secure runtime for Typescript and Javascript that uses Google’s V8 and core is built in Rust. Here are some of the advantages of Deno.

**Benefits Of Deno-**
* Supports Typescript
* Uses a single executable file
* It has a well designed module system
* Built-in dependency inspector
* It has a code formatter
* It takes care of security

#Node.js-
Node.js is a server-side javascript environment, based on Google’s JS engine. It is focused on the event-driven HTTP servers. Node.js is an easy-to-built platform which is a scalable and fast network application. It has an event-driven I/O model and non-blocking Node.js which makes it highly efficient. Also, it is a great solution for data-intensive and real-time apps that can run on distributed devices.       

Know the amazing new features of Node.js 16 at- What’s New In Node.js 16?           

**Benefits Of Node.js-**
Easy to learn as it uses popular programming language, javascript
Serves as a client-side and server-side for the application
Helps in developing high performing apps

* Highly extensible
* Offers easy scalability
* Can catch single modules

#Deno Vs Node.js-
**1. Language Support-**
*Deno-*
It supports ES2020 features like Promise.allSettled() and globalThis keyword. ECMAScript modules are default, with CommonJS modules not supported unless you use Node compatibility library. TypeScript is supported as a first-class language in Deno, means it works out-of-the-box: no need for installing extra tools to transpile to JavaScript first. Obviously, the V8 engine doesn’t support TypeScript natively, so Deno is as yet transpiling the code, however this is all consistent and transparent to you as a developer.

*Node.js-*
Latest Node release supports modern Javascript syntax and features. Also, it supports 75% of the ES2020 spec. Also, ECMAScript modules are supported, but are now only classed as experimental: you have to use the .mjs file extension, or add the property “type”: “module” to your project’s package.json file. To run TypeScript on Node, the code should be compiled to Javascript that V8 engine can execute. There are various ways to do this, with different pros and cons. Hence you should choose of these and follow the necessary setup process.

**2. Package Management-**
Know more at- [https://solaceinfotech.com/blog/deno-vs-node-js-a-comparison-you-need-to-know/]