7 What accept interfaces return structs means in go

medium.com posted by lolly 342 days ago  

I’ve mentioned a general guideline of accept interfaces, return structs in a previous post and multiple times on code reviews to coworkers, but often get the question “Why”. Especially since this isn’t a hard rule. The crux of the idea, and understanding when to bend it, is in the balance of avoiding preemptive abstractions while maintaining flexibility.

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