Uploaded May 2025 | Updated September 2026, 1 week ago

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Internationalization (I18n) is a difficult task, especially if you don’t plan for it from the start. In this video I will not only be showing you how to handle internationalization, but also how to build your own internationalization system entirely from scratch with full type safety.


📚 Materials/References:

GitHub Code: github.com/WebDevSimplified/intl-crash-course
Build Your Own React Router Video: youtu.be/b7uUWoS1Zro


🌎 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
01:20 - How the library works
04:55 - Code explanation/walkthrough
07:55 - defineTranslation function
18:52 - initI18n function
34:40 - Built in JS I18n features


#I18n #WDS #Internationalization