Observer
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May 1, 2024
3 minute read
The Observer pattern is a software design pattern that defines a one-to-many dependency between objects so that when one object changes state, all its dependents are notified and updated automatically.
Origins and History
The Observer pattern was first discussed in the book Design Patterns: Elements of Reusable Object-Oriented Software by Erich Gamma, Richard Helm, Ralph Johnson, and John Vlissides, also known as the "Gang of Four". They proposed the Observer pattern as a way to decouple objects and make it easier to manage changes in the state of an object.
Benefits of the Observer Pattern
The Observer pattern offers several benefits, including:
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Find a path to becoming a Observer. Learn more at:
OpenCourser.com/topic/cpp5dt/observe
