---
title: "Discussion on \"Observer Pattern Part #1\" | Hashnode"
description: "Discussion on \"Observer Pattern Part #1\". The Observer Pattern is a behavioral design pattern if you don't know what design pattern see this POST. Understanding this pattern is fundamental because it is common in the iOS developer day-to-day.\nWhat is Observer Pattern\nIt makes a one-to-many c..."
url: "https://hashnode.com/posts/observer-pattern-part-1/6056716c5f8d5121697273c3"
---

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# [Observer Pattern Part #1](https://swiftlearningnow.hashnode.dev/observer-pattern-part-1?utm_source=hashnode&utm_medium=feed)

The Observer Pattern is a behavioral design pattern if you don't know what design pattern see this POST. Understanding this pattern is fundamental because it is common in the iOS developer day-to-day. What is Observer Pattern It makes a one-to-many c...

Mar 20, 2021 · 11 min read · swiftlearningnow.hashnode.dev  
Updated Mar 26, 2021  
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## Written by

[Gabriel Gonçalves](https://hashnode.com/@GabrielGGuim)

@GabrielGGuim

  
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I'm iOS developer

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