Amina Bešlija
Amina Bešlija

Deno Introduction with Practical Examples

Key Takeaways Deno is a JavaScript runtime built with security in mind. Deno provides many helper functions to streamline frequent operations. Deno supports non-transpiled TypeScript Deno strives to address some challenges with Node.js It’s incredibly easy to create web servers and manage files with Deno What is Deno? Deno is a simple, modern, and secure runtime for JavaScript and TypeScript applications built with the Chromium V8 JavaScript engine and Rust, created to avoid several pain points and regrets with Node.js. Deno was originally announced in 2018 and reached 1.0 in 2020, created by the original Node.js founder Ryan Dahl and other mindful contributors. The name DE-NO may seem odd until you realize that it is simply the interchange of NO-DE. The Deno runtime: Adopts security by default. Unless explicitly allowed, Deno disallows file, network, or environment access. Includes TypeScript support out-of-the-box. Supports top-level await. Includes built-in unit testing and code formatting (deno fmt). Is compatible with browser JavaScript APIs: Programs authored in JavaScript without the Deno namespace and its internal features should work in all modern browsers. Provides a one-file executable bundler through deno bundle command which lets you share your code for others to run without installing Deno.


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