Javascript Design Patterns #5 - Observer Pattern

Описание

What is the Observer design pattern?
The Observer pattern is a design pattern that offers a subscription model in which objects (known as 'observers') can subscribe to an event (known as a 'subject') and get notified when the event occurs (or when the subject sends a signal). This pattern is the cornerstone of event driven programming.


?Materials/References:

GitHub Code: https://github.com/pkellz/devsage/blob/master/DesignPatterns/Observer.js
Blog Post: https://www.explainedsimply.io/observer-design-pattern-explained/
"Design Patterns Explained Simply" Ebook: https://payhip.com/b/MLtJ

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