Uploaded February 2026 | Updated September 2026, 1 week ago

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*Become a web developer* with my *FREE Web Development Roadmap* - _260+ videos, 120+ projects, 60+ articles_ 👉 webdevsimplified.com/web-dev-roadmap.html
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Error handling is something that is often overlooked in apps, which is usually the sign of a junior developer. In this video I will show you how to properly handle errors in a typesafe way that makes working with your code so much easier.


📚 Materials/References:

Discriminating Unions Video: youtu.be/xsfdypZCLQ8
Satisfies Keyword Video: youtu.be/Xm_VGeTpS2Q
Senior Dev Permissions Video: youtu.be/5GG-VUvruzE


🌎 Find Me Here:

My Blog: blog.webdevsimplified.com
My Courses: courses.webdevsimplified.com
Patreon: patreon.com/WebDevSimplified
Twitter: twitter.com/DevSimplified
Discord: discord.gg/7StTjnR
GitHub: github.com/WebDevSimplified
CodePen: codepen.io/WebDevSimplified


⏱️ Timestamps:

00:00 - Introduction
00:54 - Starting Code
02:21 - The Problem
04:37 - Service Layer
13:49 - More Problems
15:44 - Simple Solution
26:02 - Library Solution


#ErrorHandling #WDS #TypeScript