---
title: "Discussion on \"What is functional Programming? A Beginner’s Guide to Writing Cleaner JavaScript Code\" | Hashnode"
description: "Discussion on \"What is functional Programming? A Beginner’s Guide to Writing Cleaner JavaScript Code\". Do you find it hard to debug or test your JavaScript code due to the growth in the codebase (all files and code needed to run a software application), or do you ask yourself why you keep repeating the same code when you could write it once and reuse ..."
url: "https://hashnode.com/posts/what-is-functional-programming-a-beginners-guide-to-writing-cleaner-javascript-code/6866c6e9ccc354d61d5e5424"
---

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Discussion

# [What is functional Programming? A Beginner’s Guide to Writing Cleaner JavaScript Code](https://boluwatife-adeyeye.hashnode.dev/what-is-functional-programming-a-beginners-guide-to-writing-cleaner-javascript-code?utm_source=hashnode&utm_medium=feed)

Do you find it hard to debug or test your JavaScript code due to the growth in the codebase (all files and code needed to run a software application), or do you ask yourself why you keep repeating the same code when you could write it once and reuse ...

Jul 3, 2025 · 14 min read · boluwatife-adeyeye.hashnode.dev  
Updated Jul 8, 2025  
Read the article

-   [#stateless-function](https://hashnode.com/tag/stateless-function)
-   [#recursion-instead-of-a-loop](https://hashnode.com/tag/recursion-instead-of-a-loop)
-   [#side-effect-in-functional-programming](https://hashnode.com/tag/side-effect-in-functional-programming)
-   [#functional-programming-vs-object-oriented-programming](https://hashnode.com/tag/functional-programming-vs-object-oriented-programming)
-   [#functional-programming](https://hashnode.com/tag/functional-programming)
-   [#javascript](https://hashnode.com/tag/javascript)
-   [#pure-functions](https://hashnode.com/tag/pure-functions)
-   [#clean-code](https://hashnode.com/tag/clean-code)
-   [#immutability](https://hashnode.com/tag/immutability)
-   [#declarative-vs-imperative-programming](https://hashnode.com/tag/declarative-vs-imperative-programming)
-   [#declarative](https://hashnode.com/tag/declarative)
-   [#first-class-functions](https://hashnode.com/tag/first-class-functions)
-   [#lazy-evaluation](https://hashnode.com/tag/lazy-evaluation)

## Written by

[Adeyeye Boluwatife](https://hashnode.com/@Developstar)

@Developstar · Nigeria

  
[View profile](https://hashnode.com/@Developstar)

Technical Writing

I am a technical writer specializing in transforming complex technical topics into clear, engaging content that educates and empowers users. With a background in web development and MERN stack projects, I bring deep technical knowledge to every piece I write ensuring accuracy and clarity for both technical and non-technical audiences. I create: API documentation Technical blog posts Tutorials and guides Product manuals

## Responses 2

Markdown supported · ⌘↵ to post

[Timothy Adeyeye](https://hashnode.com/@Codescroll)

[Jul 12, 2025](https://hashnode.com/posts/what-is-functional-programming-a-beginners-guide-to-writing-cleaner-javascript-code/6866c6e9ccc354d61d5e5424/comment/6872bf2e14b4030dfbb662b9)

Great!

[Fatai Raheem](https://hashnode.com/@adebayor)

[Jul 7, 2025](https://hashnode.com/posts/what-is-functional-programming-a-beginners-guide-to-writing-cleaner-javascript-code/6866c6e9ccc354d61d5e5424/comment/686bf0f572208acc789a77db)

Insightful article. Great job 👍