Observer Pattern - Design Patterns in JavaScript

YouTube Excerpt: Repository: https://github.com/TomDoesTech/js-design-patterns The observer pattern makes use of observable objects to make your code reactive. An observable is an object (the subject) that maintains a list of dependents (observers) and notifies them when the state changes, usually by calling a broadcast method. An example of the observable pattern is EventTarget.addEventListener(). addEventListener allows you to subscribe to an event on the DOM and provide a callback function. When that event happens, your callback function will be executed. 0:00 Introduction 1:37 Create observable with a class 3:46 Using the observable 5:05 Observable factory function 6:08 Practical example 🌎 Follow me here: Discord: https://discord.gg/4ae2Esm6P7 Twitter: https://twitter.com/tomdoes_tech Facebook: https://www.facebook.com/tomdoestech​ Instagram: https://www.instagram.com/tomdoestech​ TikTok: https://www.tiktok.com/@tomdoes_tech ☕ Buy me a coffee: https://www.buymeacoffee.com/tomn

Repository: https://github.com/TomDoesTech/js-design-patterns The observer pattern makes use of observable objects to make your code reactive. An...

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