Uploaded April 2025 | Updated September 2026, 1 week ago

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Originally published on dotJS YouTube: youtube.com/watch?v=qAVyDK8SKW4

00:00 Intro
00:24 What is Deno?
02:05 Debugging with console.log
02:42 DEMO: figuring out a bug with console.logs
09:55 DEMO: looking at Grafana with logs
11:14 Logs vs. Traces
12:30 It's not magic — it's called async context propagation ✨
13:39 Metrics
14:34 How to get started right now
16:53 Top secret Deno Deploy demo featuring built-in telemetry
18:39 #FreeJavaScript plug

Read more about Deno's built-in OpenTelemetry support:
- deno.com/blog/zero-config-debugging-deno-opentelemetry
- deno.com/blog/otel-tracing-in-node-and-deno
- docs.deno.com/runtime/fundamentals/open_telemetry

The log in the tuxedo was an image from https://honeycomb.io.

Deno is an all-in-one batteries included JavaScript and TypeScript toolchain.

Website: deno.com
GitHub: github.com/denoland
Discord: discord.gg/deno
Bluesky: https://bsky.app/profile/deno.land
Mastodon: fosstodon.org/@deno_land
Twitter: https:/twitter.com/deno_land