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How I Stopped Worrying and Learned to Love Go Interfaces

Allan Githaiga on October 23, 2024

Hey there, fellow Go newbies (or should I say Gophers-in-training🕧)! 🌱 Interfaces seemed like one of those mysterious, magical things that everyone...
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Martin Baun

Go makes me love my job :)

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Allan Githaiga

Hey martin..indeed Go is the best language so far to work with especially while focusing on the back-end side..Looking foward to collaborate with you in any kind of projects you need assistance
reach me out thru my email : allangithaiga5@gmail.com
Best regards,
Allan Githaiga

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David Sugar

This is true for services development in general, not just web backends, and those issues I used to find vexing (vendor caching, for offline builds, for example) are now long gone. It remains clean to read with long term stability in the compiler and ecosystem, so you don't have things constantly change and break every time you happen to do a newer build...

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Nikita N

This article is one of the most useful I've read recently about GoLang, especially regarding interfaces. Thank you!

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Shogg Realr

this article was one of the worst

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Stanley Kariuki

If I may ask how do you make your blog banners especially the Go character?

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Allan Githaiga

well i just modify them using UX tools like figma,miro or canva

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Pallavi Godse

I too worry too much when working in Go. Thank you for this guide!

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Fred

great article @githaiga22 , this is a nice and fun way to explain interfaces.

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Denil

Nice article, straight to the point.

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Lamine

Salut à tous.
Je suis développeur d'application Android et je viens juste de terminer mon application gratuite de philosophie.
J'aimerais avoir des testeurs pour m'aider à l'améliorer. Voici mon adresse mail :
Laminefalldeveloppeur@gmail.com

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Smally Pauls

nice learning interface and struct diffrances

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Oscar

Just a heads up that you can add highlighting to the code blocks if you'd like. Just change:

code block with no colors example

... to specify the language:

code block with colors example

More details in our editor guide!

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Shogg Realr • Edited

Yep, you don't understand anything about Go interfaces. An interface is a type. You never used the interface you declared. You just called methods all named the same (Sound). And then you promoted the empty interface which is a really bad advice.

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Shogg Realr • Edited

To add more context, fmt.Println accepts variadic 'any'. This code is not generic or templated. It has nothing to do with interfaces. It relies on Runtime Reflection, which is the slowest. I use it in my libs.

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