Deno improves upon Node.js in some significant ways.
Modules
Modules are loaded directly from URLs and cached locally.
import confetti from "https://esm.sh/canvas-confetti@1.6.0";
This allows the decentralization of packages by removing reliance on npm and enabling developers to self-host their packages.
Consequently, this removes the need for package.json
and node_modules
, and allows programs to run in the browser since there is no reliance on build tools like Webpack.
Security
Because code is executed in a sandbox, the Deno runtime has no access to the file system and the network. Flags like --allow-write
and --allow-net
can be used to explicitly enable access.
Other Features
In addition to the above features, Deno supports TypeScript out of the box and has a built-in formatter for code similar to ESLint for Node.js.
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