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> "TBH if you've developed software in the past ten years, it's unlikely you haven't been hugely affected by what the FP community has been doing."

Apart from HN / reddit bubble, not many people know about FP, and not to imply that's their fault. FP is still weird, difficult for mere mortals, and ivory tower elitism is holding some of its useful ideas back.

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Well, most Portuguese students with university degree in Informatics happen to have been exposed to FP and LP during their 5 year degree (or 3 + 2 as they usually do it nowadays).

Given that most HR departments still value having a degree, that is still quite a bit of people, specially if one extrapolates to other countries that share similar attitude to universities and HR hiring practices.

people are doing FP, or using ideas originating in FP without even knowing it:

* Java/C# generics

* sealed interfaces and record classes

* pattern matching

* first-class functions with closures

* even type system itself (eg Python is gaining a type system)

* ...

The world of programming languages is converging, no matter how slowly, towards ML

https://www.cs.cmu.edu/~rwh/talks/mlw13.pdf

Half of those things aren't even specific to FP. And I bet most people don't even use pattern matching outside HN / reddit bubble, not to say it isn't cool.

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