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this post was submitted on 22 Dec 2023
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Programming
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When you can't reasonably use a loop or when it's not particularly important for performance and the recursive function is more readable.
Honestly, in code the absolute most important quality is readability. Readability should always be prioritized until you find performance issues that matter in a specific block of code.
On a side note: not caring about performance "until you find performance issues" is a huge problem with modern software imho. That's the reason apps are so slow, updates take so long, everything uses so much space. I'd wish that performance would always be a point of consideration, not an afterthought once there are problems.
I don’t think loop vs recursion choice is what significantly impacts performance in most cases. Most of the software I saw, suffer performance because of wrong API design or overall architecture. If app needs to fetch 100 objects from API which can provide only one object at the time no optimization will save that app.
App team - we need bulk API.
API team - cannot because of capacity, budget, backward compatibility, DB, 3rd patry API, not a KPI
Also it’s mostly QAs measuring performance and validating it with product guidelines which set by person who mostly detached from specific product and sometimes reality.
I think loops tend to be faster, but well done recursion might be just as fast. I just wanted to mention performance being a point of consideration when making these decisions. I 100% agree that poor (API) architecture is probably one of the biggest reasons for slow software. It's just that every bit of poor performance adds up along the way, and then we end up having fast computers (that are orders of magnitude faster than anything 15 years ago) running bloated electron apps (that are sometimes even slower than their equivalent 15 years ago) and it's just frustrating.