What is Deno?

Deno is a new runtime for JavaScript and TypeScript, created by Ryan Dahl – who also created Node.js. The project was in public development for about two years, and the first stable release of Deno, version 1.0, was released on 13th May 2020.

Deno was developed to overcome some of the Node’s limitations, especially security. In short, Deno is an upgraded and secured version of Node. Unlike Node.JS, Deno offers first-class support for Microsoft’s increasingly popular Typescript, a superset of JavaScript designed for complex and large projects. Deno is written in programming language Rust and based on Google’s Chromium V8 JavaScript engine and as opposed to C++ for Node.

In 2018, Ryan revealed Deno in one of the conferences where he was giving a talk about shortcomings of Node, and at the end of that presentation, he revealed a more secure and improved version of Node, i.e. Node V2.

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