Refactor sayHello function to eliminate dead code

Removed redundant greeting string construction and unreachable console log.

Author: khaliun-dev

Sprint-3/3-dead-code/exercise-1.js

@@ -15,3 +15,23 @@ testName = "Aman";
 const greetingMessage = sayHello(greeting, testName);
 
 console.log(greetingMessage); // 'hello, Aman!'
+
+//I have removed "const greetingStr = greeting + ", " + name + "!";" because it serves the same purpose as "return `${greeting}, ${name}!`;",
+//making it redundant.
+
+//Also, "console.log(greetingStr);" comes after  "return `${greeting}, ${name}!`;", making it unreachable inside the function, since eveything
+//after "return" is ignored.
+
+
+let testName = "Jerry";
+const greeting = "hello";
+
+function sayHello(greeting, name) {
+  return `${greeting}, ${name}!`;
+}
+
+testName = "Khaliun";
+
+const greetingMessage = sayHello(greeting, testName);
+
+console.log(greetingMessage); // "hello, Khaliun!"