This repository accompanies the article on A Brief Introduction to Observer Pattern, providing insights into the Observer design pattern, its applications, and a practical code example. The main focus is on understanding the concept and implementing it in the context of a simple web page, specifically a profile page in an application.
The Observer pattern is a powerful software design pattern where an object, known as the subject, maintains a list of its dependents, called observers. The subject automatically notifies observers of any state changes, typically by invoking one of their methods. This pattern establishes a one-to-many dependency relationship, making it ideal for scenarios with numerous components dependent on specific events.
The practical demonstration involves the creation of a simple web page, representing the profile page of an application. Users can load an image on this page, and upon successful loading, the image is displayed in two locations: the navbar and the profile page.
To run the application locally, follow these steps:
- Clone the repository:
git clone [repository-url] - Navigate to the project folder:
cd [project-folder] - Open file
profile.html
Feel free to explore the code and use it as a reference while reading the article to gain a deeper understanding of the Observer pattern in action.
Happy coding! π