Simple signals implementation

signals.js

class Signal {
  constructor(value) {
    this.value = value;
    this.subscribers = new Set();
  }

  get() {
    return this.value;
  }

  set(newValue) {
    if (typeof this.value === 'object' && typeof newValue === 'object' && this.value !== null && newValue !== null) {
      this.value = { ...this.value, ...newValue }; // Deep merge objects
    } else {
      this.value = newValue;
    }
    this.notify();
  }

  subscribe(callback) {
    this.subscribers.add(callback);
    return () => this.subscribers.delete(callback); // Unsubscribe function
  }

  notify() {
    this.subscribers.forEach(callback => callback(this.value));
  }
}