---
title: "SOLID Principles — The ‘O’"
url: https://daily.dev/posts/solid-principles-the-o--gmradxhbl
source_url: https://faun.pub/solid-principles-the-o-2083f3f1aa87
type: article
source: "Faun"
published: 2021-09-20T06:37:21.924Z
updated: 2021-10-07T14:17:10.317Z
tags: ["general-programming"]
reading_time: 2
upvotes: 16
comments: 0
language: en
---

> ## Documentation Index
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# SOLID Principles — The ‘O’

**[Faun](https://daily.dev/sources/faun)** · 2 min read · 16 upvotes · 0 comments

## Summary

The Open Closed Principle (OCP) is the most important principle of the SOLID principles. OCP means that any class/function should be open for extension, but closed for modification. Modifying existing code for every new feature is a bad practice. This leads to a continuous behaviour of writing code in a spaghetti programming style.

## Full article

daily.dev links to this article rather than hosting it. Read it at the original source: <https://faun.pub/solid-principles-the-o-2083f3f1aa87>

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---

Tags: [#general-programming](https://daily.dev/tags/general-programming)

[View this post on daily.dev](https://daily.dev/posts/solid-principles-the-o--gmradxhbl)