Functional Programming Languages

Discussions center on the distinction between functional programming as a style versus functional programming languages, their features like purity and immutability, and comparisons to languages like Haskell, Lisp, Python, and JavaScript.

📉 Falling 0.3x Programming Languages
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Keywords

CS STL LISP JavaScript FP functional functional programming languages programming functional languages functional language language paradigm imperative javascript

Sample Comments

justthistime_ Jul 4, 2015 View on HN

It's more functional than most languages called "functional".

amelius Aug 31, 2022 View on HN

... for functional programming languages, I suppose.

gbog May 12, 2012 View on HN

Maybe there is a difference between functional programming and functional programming languages.

saagarjha Feb 20, 2020 View on HN

A language that actually cares about functional programming.

goldfeld Nov 27, 2017 View on HN

Yes. The website beats around the bush before stating that actually most functional programming languages are just like this (possibly more interesting too, shh).

souldzin Jul 25, 2025 View on HN

Are functional languages more computer science than imperative languages?

evanrmurphy Mar 22, 2010 View on HN

No functional programming languages? (Except for the bit in Python.)

sdenton4 Aug 28, 2024 View on HN

Are you proposing functional programming? There's plenty of examples of languages going that route (including languages with varying levels of compromise on 'pure' functionality for performance).

cerved Aug 15, 2021 View on HN

I meant of the functional languages

freyrs3 Nov 4, 2013 View on HN

Functional or imperative language?