chore: update build outputs and module resolutions

Author: jalik

src/Observer.ts

@@ -1,6 +1,6 @@
 /*
  * The MIT License (MIT)
- * Copyright (c) 2024 Karl STEIN
+ * Copyright (c) 2025 Karl STEIN
  */
 
 export type Listener = (...args: any[]) => void
@@ -23,7 +23,7 @@ class Observer<Context, Event extends string> implements IObserver<Context, Even
    * Executes all listeners attached to an event.
    */
   emit (event: Event, ...args: unknown[]): void {
-    const listeners = this.events.get(event) || []
+    const listeners = this.events.get(event) ?? []
     listeners.forEach((fn) => {
       fn.apply(this.context, args)
     })
@@ -35,7 +35,7 @@ class Observer<Context, Event extends string> implements IObserver<Context, Even
    * @param listener
    */
   off (event: Event, listener: Listener): void {
-    const listeners = this.events.get(event) || []
+    const listeners = this.events.get(event) ?? []
     this.events.set(event, listeners.filter((fn) => fn !== listener))
   }
 
@@ -45,7 +45,7 @@ class Observer<Context, Event extends string> implements IObserver<Context, Even
    * @param listener
    */
   on (event: Event, listener: Listener): void {
-    const listeners = this.events.get(event) || []
+    const listeners = this.events.get(event) ?? []
     this.events.set(event, [...listeners, listener])
   }
 

tsconfig.cjs.json

@@ -2,7 +2,6 @@
   "extends": "./tsconfig.json",
   "compilerOptions": {
     "module": "CommonJS",
-    "outDir": "./cjs",
-    "target": "ES5"
+    "outDir": "./cjs"
   }
 }

tsconfig.json

@@ -3,16 +3,19 @@
     "declaration": true,
     "declarationMap": true,
     "esModuleInterop": true,
-    "module": "ES2022",
-    "moduleResolution": "Node",
+    "forceConsistentCasingInFileNames": true,
+    "module": "ESNext",
+    "moduleResolution": "node",
     "noImplicitAny": true,
     "outDir": "./esm",
+    "skipLibCheck": true,
     "sourceMap": true,
     "strict": true,
     "target": "ES2022"
   },
   "exclude": [
-    "node_modules"
+    "node_modules",
+    "test"
   ],
   "include": [
     "src"