What Makes Deno the Next‑Generation Alternative to Node.js?

One of the original authors of Node.js, Ryan Dahl, introduced a new runtime called Deno, which was open‑sourced on GitHub in early June.

Deno is positioned as a modern replacement for Node.js, similar to how MariaDB relates to MySQL, and this article examines its key characteristics.

Five months after the June announcement, Dahl reflected on the mistakes made while building Node.js at JsConf EU and subsequently left the Node.js community. Development on Deno began in May.

Deno.js: What’s New

The recent release of Deno 0.1.11 brings performance and stability improvements across all platforms, adds deno.Buffer, introduces deno.resources(), and enables HTTPS support in the fetch API.

Deno natively supports TypeScript 3.1, eliminates the need for a package.json, and imports modules directly via URLs. Retrieved code is cached on first run and can be refreshed with the --reload flag.

Deno Roadmap

The roadmap shows upcoming support for await (not yet implemented) and a growing security model that, by default, restricts network access, file‑system writes, and non‑JavaScript extensions or subprocesses.

The full roadmap is available at https://github.com/denoland/deno/blob/master/Roadmap.md. Deno also includes initial performance benchmarks, though it does not provide a direct comparison with Node.js.

Compiled by 老夏.