Deno: A secure runtime for JavaScript and TypeScript.

Updating deno

webi deno@stable

Use the @beta tag for pre-releases, or @x.y.z for a specific version.

Cheat Sheet

Deno proves that lightning does strike twice. It's the ease of use of node, the intentional tooling of Go, and built in Rust.

Hello World

The obligatory Hello World

deno run

Run a local file

deno run ./hello.ts

Enable permissions

deno run --allow-read=./data,./public --allow-write=./data \, ./hello.ts

Format source code, recursively

deno fmt ./my-project


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