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
5,910
Comments
20
Years Active
5
Top Authors
#7706
Topic ID

Activity Over Time

2007
22
2008
36
2009
136
2010
175
2011
185
2012
288
2013
345
2014
396
2015
401
2016
508
2017
510
2018
313
2019
413
2020
449
2021
374
2022
382
2023
443
2024
280
2025
246
2026
8

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?