#24 - TypeScript

Author: Sac-Corts

Roadmap/24 - DECORADORES/typescript/Sac-Corts.ts

@@ -0,0 +1,32 @@
+function greet(name: string): string {
+    return `Hello, ${name}!`;
+}
+
+function logDecorator<T extends (...args: any[]) => any>(fn: T): (...args: Parameters<T>) => ReturnType<T> {
+    return function(...args: Parameters<T>): ReturnType<T> {
+        console.log(`Calling function: ${fn.name}`);
+        const result = fn(...args);
+        console.log(`Function ${fn.name} executed with result: ${result}`);
+        return result;
+    };
+}
+
+const decoratedGreet = logDecorator(greet);
+console.log(decoratedGreet("Isaac"));
+
+// ** Extra Exercise ** //
+function callCountDecorator<T extends (...args: any[]) => any>(fn: T): (...args: Parameters<T>) => ReturnType<T> {
+    let count = 0;
+
+    return function(...args: Parameters<T>): ReturnType<T> {
+        count++;
+        console.log(`Function ${fn.name} has been called ${count} times`);
+        return fn(...args);
+    };
+}
+
+const decoratedGreet2 = callCountDecorator(greet);
+console.log(decoratedGreet2("Hiel"));
+console.log(decoratedGreet2("Kurama"));
+console.log(decoratedGreet2("Yusuke"));
+console.log(decoratedGreet2("Kuwabara"));