Instruction: Write a simple implementation of the pub/sub pattern for event handling in JavaScript.
Context: This question tests the candidate's understanding of design patterns and their ability to implement decoupled communication between components.
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Let's dive into a simple implementation suitable for a Frontend Developer role, focusing on event handling within a web application.
First, let's clarify our goals with this implementation: - Create a basic pub/sub system that allows components to communicate through events. - Ensure the system is easy to understand and adaptable, enabling other developers to extend it for various use cases. - Focus on readability and efficiency....