Uploaded January 2026 | Updated September 2026, 1 week ago
Learn more about Deno 2.6: deno.com/blog/v2.6
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
Newsletter: https://deno.news
Learn more about Deno 2.6: deno.com/blog/v2.6
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
Newsletter: https://deno.news








![Roll Your Own JavaScript Runtime by Bartek Iwańczuk (NodeCongress 23)
Building off [1] and [2], Bartek adds a `setTimeout` API to a custom JavaScript runtime.
1. https://deno.com/blog/roll-your-own-javascript-runtime
2. https://deno.com/blog/roll-your-own-javascript-runtime-pt2
00:16 Intro from Bartek
00:49 Agenda
01:38 Deno 101
03:39 Deno & Rust
06:58 What our custom runtime can do
08:48 Why custom a runtime?
10:52 Add support for `setTimeout` API
18:05 Conclusion
Deno is a simple, modern and secure runtime for JavaScript and TypeScript that uses V8 and is built in Rust.
Website: https://deno.land
GitHub: https://github.com/denoland
Discord: https://discord.com/invite/deno
Twitter: https://twitter.com/deno_land Roll Your Own JavaScript Runtime by Bartek Iwańczuk (NodeCongress 23)](https://i.ytimg.com/vi/xJXQwuTB_7Y/mqdefault.jpg)

