Javascript是一种函数式编程语言吗？ [英] Is Javascript a Functional Programming Language?

问题描述

仅仅因为函数是第一类对象，有闭包和高阶函数，Javascript是否应该称为函数式编程语言？我认为它缺乏的主要是纯函数，它不像'lisp'等其他函数式语言'感觉'（尽管这不是一个真正的理由，它不是一个功能语言......）

解决方案

重复

没有可接受的$定义b $ b函数式编程语言。

如果将函数式语言定义为
，那么支持第一类
函数和lambdas的语言，那么是的，JavaScript *是*
函数式语言。

如果您还考虑像
这样的因素支持不变性，代数
数据类型，模式匹配，部分
应用等，然后不，JavaScript
*不是一种功能语言。

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我建议您阅读相关博客文章中的
（以及
下方的注释）：

• Scala不是一种功能性语言

• Erlang无法正常工作




• Reddit讨论Erlang is无功能

Just because functions are first class objects, there are closures, and higher order functions, does Javascript deserve to be called a Functional Programming language? The main thing I think it lacks is Pure Functions, and it doesn't 'feel' like other functional languages, like lisp (although thats not really a good reason for it not to be a functional langauge...)

解决方案

Repeating my own answer to a similar question,

There's no accepted definition of functional programming language.

If you define functional language as the language that supports first class functions and lambdas, then yes, JavaScript *is* a functional language.

If you also consider the factors like support for immutability, algebraic data types, pattern matching, partial application etc then no, JavaScript *is not* a functional language.

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I'd encourage you to read the following related blog posts (and also the comments below them):

• Scala is not a functional language

• Erlang is not functional

• Reddit discussion on "Erlang is not functional"

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