Writing Clean & Maintainable Code

What is the significance of implementing the Observer Pattern in JavaScript applications?

class EventEmitter {
  constructor() {
    this.events = {};
  }

  on(event, callback) {
    if (!this.events[event]) {
      this.events[event] = [];
    }
    this.events[event].push(callback);
  }

  emit(event, data) {
    if (this.events[event]) {
      this.events[event].forEach(callback => callback(data));
    }
  }
}

To improve application performance
To reduce memory usage
To implement loose coupling between components
The Observer Pattern (implemented here as an EventEmitter) enables loose coupling between components by allowing them to communicate without direct dependencies. This improves maintainability by making components more independent and easier to modify or replace. It's particularly useful for handling UI updates, state changes, and cross-component communication.
To enhance security

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