Sunday, 7th November 2021
TIL
Annotated code for a demo of WebSocket chat in Deno Deploy
— Deno Deploy is a hosted Deno service that promises [a multi-tenant JavaScript engine running in 25 data centers across the world](https://deno.com/blog/deploy-beta1/).
Deno Deploy Beta 3 (via) I missed Deno Deploy when it first came out back in June: it’s a really interesting new hosting environment for scripts written in Deno, Node.js creator Ryan Dahl’s re-imagining of Node.js. Deno Deploy runs your code using v8 isolates running in 28 regions worldwide, with a clever BroadcastChannel mechanism (inspired by the browser API of the same name) that allows instances of the server-side code running in different regions to send each other messages. See the “via” link for my annotated version of a demo by Ondřej Žára that got me excited about what it can do.