# Episode 22 - Signals

An episode of [Programming](https://invisiblenetwork.ai/podcast/1493739285), 10 Jan 2025, 11 min.

Audio: https://anchor.fm/s/ff47d524/podcast/play/96885456/https%3A%2F%2Fd3ctxlq1ktw2nl.cloudfront.net%2Fstaging%2F2025-0-10%2Fa677b79b-674c-8de7-1279-bfc350908f45.m4a

In this episode, we'll explore a concept called Signal that has been getting a lot of traction in JavaScript over the past few years. I'll describe a simple implementation so you can understand the internals and then see how it relates to the traditional object-oriented design pattern observer.

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