Fix expo issues, fix addEventListener and removeEventListener when event type is not registered.

Author: wojciechkrol

index.d.ts

@@ -57,7 +57,7 @@ export type EventSourceListener<E extends string = never> = (
 ) => void;
 
 declare class EventSource<E extends string = never> {
-  constructor(url: URL | string, options?: EventSourceOptions);
+  constructor(url: URL | string, options?: EventSourceOptions = {});
   open(): void;
   close(): void;
   addEventListener(type: E | EventType, listener: EventSourceListener<E>): void;

package.json

@@ -1,6 +1,6 @@
 {
   "name": "react-native-sse",
-  "version": "1.0.4",
+  "version": "1.0.5",
   "description": "EventSource implementation for React Native. Server-Sent Events (SSE) for iOS and Android.",
   "main": "index.js",
   "scripts": {

src/EventSource.js

@@ -4,7 +4,7 @@ class EventSource {
   OPEN = 1;
   CLOSED = 2;
 
-  constructor(url, options) {
+  constructor(url, options = {}) {
     this.interval = options.pollingInterval || 5000;
     this.lastEventId = null;
     this.lastIndexProcessed = 0;
@@ -209,11 +209,17 @@ class EventSource {
   }
 
   addEventListener(type, listener) {
+    if (this.eventHandlers[type] === undefined) {
+      this.eventHandlers[type] = [];
+    }
+    
     this.eventHandlers[type].push(listener);
   }
 
   removeEventListener(type, listener) {
-    this.eventHandlers[type] = this.eventHandlers[type].filter((handler) => handler !== listener);
+    if (this.eventHandlers[type] !== undefined) {
+      this.eventHandlers[type] = this.eventHandlers[type].filter((handler) => handler !== listener);
+    }
   }
 
   removeAllEventListeners(type) {