Groups | Search | Server Info | Keyboard shortcuts | Login | Register [http] [https] [nntp] [nntps]

Groups > comp.lang.javascript > #34915

Re: Is JS a functional programming language?

Show all headers | View raw

Michael Haufe (TNO) wrote:

> The main point I was setting up with Julio was that Object-Oriented and
> Functional programming are duals[1] of each other […]
> 
> [1] <https://en.wikipedia.org/wiki/Duality_(mathematics)>

But *that* is _not_ true.  Because you can employ the object-oriented 
programming paradigm *without* employing the functional paradigm, and vice-
versa.  And there are, among implementations of those two paradigms, pure 
object-oriented programming languages (e.g., Visual Basic) as well as there 
are pure functional programming languages (e.g., Haskell).  I happen to have 
used both, so I can confirm

<https://en.wikipedia.org/wiki/Comparison_of_programming_languages#General_comparison>

in that regard.

AISB, the key property of a functional programming language is that 
“functions are first-class objects”.  Superficialls that looks like a 
contradiction; but it _not_ because “first-class object” must be understood 
like “first-class citizen”: we are talking about objects/targets *of 
operations* there.[1]

So the most fundamental operation that a functional programming language 
must allow is passing a (reference to a) function as an argument to another 
function.  (ECMAScript implementations, like the various JavaScripts, allow 
that, as functions are specified and implemented as real *OOP* objects¹ and 
you can always pass references to objects as arguments of functions.)

Also, it is not always helpful or correct to migrate mathematic terminology 
to other fields; in this case it certainly is not.

_________
¹ Functions have *properties*, a *constructor* (Function), a
  *prototype chain*, aso.

[1] <https://en.wikipedia.org/wiki/First-class_object>
-- 
PointedEars
FAQ: <http://PointedEars.de/faq> | <http://PointedEars.de/es-matrix>
<https://github.com/PointedEars> | <http://PointedEars.de/wsvn/>
Twitter: @PointedEars2 | Please do not cc me./Bitte keine Kopien per E-Mail.

Back to comp.lang.javascript | Previous | Next — Previous in thread | Next in thread | Find similar | Unroll thread

Thread

Trying to create array of object literals bit-naughty@hotmail.com - 2018-04-12 12:17 -0700
  Re: Trying to create array of object literals bit-naughty@hotmail.com - 2018-04-12 12:26 -0700
  Re: Trying to create array of object literals Maik Koenig <usenetspam@maikkoenig.de> - 2018-04-12 21:47 +0200
  Re: Trying to create array of object literals Julio Di Egidio <julio@diegidio.name> - 2018-04-12 12:49 -0700
  Re: Trying to create array of object literals Thomas 'PointedEars' Lahn <PointedEars@web.de> - 2018-04-13 10:27 +0200
    Re: Trying to create array of object literals John G Harris <niam@jghnorth.org.uk.invalid> - 2018-04-13 10:57 +0100
      Re: Trying to create array of object literals Thomas 'PointedEars' Lahn <PointedEars@web.de> - 2018-04-13 23:38 +0200
        Re: Trying to create array of object literals John G Harris <niam@jghnorth.org.uk.invalid> - 2018-04-14 11:22 +0100
          Re: Trying to create array of object literals Julio Di Egidio <julio@diegidio.name> - 2018-04-14 07:25 -0700
            Re: Trying to create array of object literals Julio Di Egidio <julio@diegidio.name> - 2018-04-14 09:09 -0700
              Re: Trying to create array of object literals John G Harris <niam@jghnorth.org.uk.invalid> - 2018-04-16 09:43 +0100
                Re: Trying to create array of object literals Julio Di Egidio <julio@diegidio.name> - 2018-04-16 02:04 -0700
                Re: Trying to create array of object literals "Evertjan." <exxjxw.hannivoort@inter.nl.net> - 2018-04-16 11:23 +0200
                Re: Trying to create array of object literals John G Harris <niam@jghnorth.org.uk.invalid> - 2018-04-16 19:32 +0100
                Re: Trying to create array of object literals "Evertjan." <exxjxw.hannivoort@inter.nl.net> - 2018-04-17 23:37 +0200
                Re: Trying to create array of object literals John G Harris <niam@jghnorth.org.uk.invalid> - 2018-04-18 16:18 +0100
                Re: Trying to create array of object literals "Evertjan." <exxjxw.hannivoort@inter.nl.net> - 2018-04-19 23:08 +0200
                Re: Trying to create array of object literals John G Harris <niam@jghnorth.org.uk.invalid> - 2018-04-20 10:17 +0100
                Re: Trying to create array of object literals "Evertjan." <exxjxw.hannivoort@inter.nl.net> - 2018-04-20 12:45 +0200
                Re: Trying to create array of object literals John G Harris <niam@jghnorth.org.uk.invalid> - 2018-04-20 19:08 +0100
              Re: Trying to create array of object literals "c.l.js" <trollhunter@curiosity.kills.no> - 2018-04-20 17:04 -0300
                Re: Trying to create array of object literals Julio Di Egidio <julio@diegidio.name> - 2018-04-20 13:15 -0700
                Is JS a functional programming language? (was: Trying to create array of object literals) Thomas 'PointedEars' Lahn <PointedEars@web.de> - 2018-04-21 02:35 +0200
                Re: Is JS a functional programming language? (was: Trying to create array of object literals) Julio Di Egidio <julio@diegidio.name> - 2018-04-21 01:36 -0700
                Re: Is JS a functional programming language? (was: Trying to create array of object literals) "Michael Haufe (TNO)" <tno@thenewobjective.com> - 2018-04-21 11:46 -0700
                Re: Is JS a functional programming language? (was: Trying to create array of object literals) "Michael Haufe (TNO)" <tno@thenewobjective.com> - 2018-04-21 11:48 -0700
                Re: Is JS a functional programming language? (was: Trying to create array of object literals) Julio Di Egidio <julio@diegidio.name> - 2018-04-21 23:53 -0700
                Re: Is JS a functional programming language? (was: Trying to create array of object literals) "Michael Haufe (TNO)" <tno@thenewobjective.com> - 2018-04-22 10:33 -0700
                Re: Is JS a functional programming language? (was: Trying to create array of object literals) Julio Di Egidio <julio@diegidio.name> - 2018-04-23 00:27 -0700
                Re: Is JS a functional programming language? (was: Trying to create array of object literals) "Michael Haufe (TNO)" <tno@thenewobjective.com> - 2018-04-23 11:50 -0700
                Re: Is JS a functional programming language? (was: Trying to create array of object literals) Julio Di Egidio <julio@diegidio.name> - 2018-04-23 12:00 -0700
                Re: Is JS a functional programming language? (was: Trying to create array of object literals) "Michael Haufe (TNO)" <tno@thenewobjective.com> - 2018-04-23 15:07 -0700
                Re: Is JS a functional programming language? "Christoph M. Becker" <cmbecker69@arcor.de> - 2018-04-24 00:47 +0200
                Re: Is JS a functional programming language? Julio Di Egidio <julio@diegidio.name> - 2018-04-23 16:12 -0700
                Re: Is JS a functional programming language? "Christoph M. Becker" <cmbecker69@arcor.de> - 2018-04-24 01:30 +0200
                Re: Is JS a functional programming language? Julio Di Egidio <julio@diegidio.name> - 2018-04-23 16:45 -0700
                Re: Is JS a functional programming language? John G Harris <niam@jghnorth.org.uk.invalid> - 2018-04-24 09:54 +0100
                Re: Is JS a functional programming language? Tim Streater <timstreater@greenbee.net> - 2018-04-24 10:17 +0000
                Re: Is JS a functional programming language? "Michael Haufe (TNO)" <tno@thenewobjective.com> - 2018-04-24 12:02 -0700
                Re: Is JS a functional programming language? Thomas 'PointedEars' Lahn <PointedEars@web.de> - 2018-04-25 05:04 +0200
                Re: Is JS a functional programming language? Julio Di Egidio <julio@diegidio.name> - 2018-04-25 02:16 -0700
                Re: Is JS a functional programming language? Julio Di Egidio <julio@diegidio.name> - 2018-04-25 02:20 -0700
                Re: Is JS a functional programming language? John G Harris <niam@jghnorth.org.uk.invalid> - 2018-04-25 18:22 +0100
                Re: Is JS a functional programming language? Jon Ribbens <jon+usenet@unequivocal.eu> - 2018-04-25 17:25 +0000
                Re: Is JS a functional programming language? "Michael Haufe (TNO)" <tno@thenewobjective.com> - 2018-04-25 14:50 -0700
                Re: Is JS a functional programming language? "Michael Haufe (TNO)" <tno@thenewobjective.com> - 2018-04-25 14:39 -0700
                Re: Is JS a functional programming language? Thomas 'PointedEars' Lahn <PointedEars@web.de> - 2018-04-29 20:44 +0200
                Re: Is JS a functional programming language? "Michael Haufe (TNO)" <tno@thenewobjective.com> - 2018-04-29 13:45 -0700
                Re: Is JS a functional programming language? "c.l.js" <trollhunter@curiosity.kills.no> - 2018-04-21 19:51 -0300
                Re: Is JS a functional programming language? Thomas 'PointedEars' Lahn <PointedEars@web.de> - 2018-04-22 01:18 +0200
                Re: Is JS a functional programming language? Thomas 'PointedEars' Lahn <PointedEars@web.de> - 2018-04-22 02:19 +0200
                Re: Is JS a functional programming language? "Mark-" <nospam@mapson.xyz> - 2018-04-22 01:52 +0000
                Re: Is JS a functional programming language? Thomas 'PointedEars' Lahn <PointedEars@web.de> - 2018-04-22 04:30 +0200
                Re: Is JS a functional programming language? "Mark-" <nospam@mapson.xyz> - 2018-04-22 02:45 +0000
                Re: Is JS a functional programming language? Thomas 'PointedEars' Lahn <PointedEars@web.de> - 2018-04-22 05:55 +0200
                Re: Is JS a functional programming language? "Mark-" <nospam@mapson.xyz> - 2018-04-22 04:04 +0000
                Re: Is JS a functional programming language? "Evertjan." <exxjxw.hannivoort@inter.nl.net> - 2018-04-22 10:59 +0200
                Re: Is JS a functional programming language? John G Harris <niam@jghnorth.org.uk.invalid> - 2018-04-22 11:03 +0100
                Re: Is JS a functional programming language? "Evertjan." <exxjxw.hannivoort@inter.nl.net> - 2018-04-22 12:50 +0200
                Re: Is JS a functional programming language? John G Harris <niam@jghnorth.org.uk.invalid> - 2018-04-23 09:19 +0100
                Re: Is JS a functional programming language? "Mark-" <nospam@mapson.xyz> - 2018-04-22 12:58 +0000
            Re: Trying to create array of object literals John G Harris <niam@jghnorth.org.uk.invalid> - 2018-04-16 10:02 +0100
              Re: Trying to create array of object literals Julio Di Egidio <julio@diegidio.name> - 2018-04-16 02:05 -0700
                Re: Trying to create array of object literals "Evertjan." <exxjxw.hannivoort@inter.nl.net> - 2018-04-16 11:27 +0200
                Re: Trying to create array of object literals Julio Di Egidio <julio@diegidio.name> - 2018-04-16 02:33 -0700
                Re: Trying to create array of object literals "Evertjan." <exxjxw.hannivoort@inter.nl.net> - 2018-04-16 14:03 +0200
                Re: Trying to create array of object literals John G Harris <niam@jghnorth.org.uk.invalid> - 2018-04-16 19:40 +0100
                Re: Trying to create array of object literals John G Harris <niam@jghnorth.org.uk.invalid> - 2018-04-17 09:45 +0100
                Re: Trying to create array of object literals Thomas 'PointedEars' Lahn <PointedEars@web.de> - 2018-04-18 03:25 +0200
                Re: Trying to create array of object literals John G Harris <niam@jghnorth.org.uk.invalid> - 2018-04-18 15:50 +0100
                Re: Trying to create array of object literals John G Harris <niam@jghnorth.org.uk.invalid> - 2018-04-18 16:08 +0100
                Re: Trying to create array of object literals Thomas 'PointedEars' Lahn <PointedEars@web.de> - 2018-04-19 03:34 +0200
                Re: Trying to create array of object literals John G Harris <niam@jghnorth.org.uk.invalid> - 2018-04-19 10:37 +0100
                Re: Trying to create array of object literals John G Harris <niam@jghnorth.org.uk.invalid> - 2018-04-19 19:02 +0100
                Re: Trying to create array of object literals Thomas 'PointedEars' Lahn <PointedEars@web.de> - 2018-04-19 03:25 +0200
                Re: Trying to create array of object literals John G Harris <niam@jghnorth.org.uk.invalid> - 2018-04-16 19:37 +0100
                Re: Trying to create array of object literals Julio Di Egidio <julio@diegidio.name> - 2018-04-16 11:48 -0700
                Re: Trying to create array of object literals John G Harris <niam@jghnorth.org.uk.invalid> - 2018-04-17 09:52 +0100
                Re: Trying to create array of object literals Julio Di Egidio <julio@diegidio.name> - 2018-04-17 03:22 -0700
                Re: Trying to create array of object literals John G Harris <niam@jghnorth.org.uk.invalid> - 2018-04-17 18:28 +0100
    Re: Trying to create array of object literals bit-naughty@hotmail.com - 2018-04-13 04:08 -0700

csiph-web