`new nativeeventemitter()` was called with a non-null argument without the required `addlistener` method.

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The error message, “new nativeeventemitter() was called with a non-null argument without the required addlistener method,” suggests that the function nativeeventemitter() was called with a non-null argument that does not have the addlistener method. This method is required for the nativeeventemitter() function to work correctly.

To provide a detailed explanation, let’s consider an example. Suppose we have a custom event emitter class called MyEventEmitter. This class implements the required addlistener method. We can create an instance of this class and use it as follows: 


// Custom Event Emitter Class
class MyEventEmitter {
  constructor() {
    this.listeners = {};
  }

  // Method to add a listener for a specific event
  addListener(event, listener) {
    if (!this.listeners[event]) {
      this.listeners[event] = [];
    }
    this.listeners[event].push(listener);
  }

  // Other methods of the event emitter class...
}

// Creating an instance of MyEventEmitter
const emitter = new MyEventEmitter();

// Adding a listener for the "click" event
emitter.addListener("click", () => {
  console.log("Click event triggered!");
});

// Triggering the "click" event
emitter.trigger("click");

In this example, we define a MyEventEmitter class with the required addListener method. We create an instance of this class and add a listener for the “click” event. When the “click” event is triggered, the listener function is executed, logging the message “Click event triggered!” to the console.

It’s important to note that the specific implementation of the event emitter class may vary depending on the framework or library being used. The key point is to ensure that the function nativeeventemitter() is called with a non-null object that has the addlistener method implemented correctly.

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