> type a "hello world" script in javascript const greet = (name = "world") => {  const message = `hello, ${name || "guest"}!`; //simple but demonstrates ||  console.log(message);  //more advanced with optional chaining and nullish coalescing, less practical for simple hello world:  const user = { name: "bob", greetings: { message: "hi there!" }};  console.log(user?.greetings?.messag e ?? "default greeting"); //only logs if both exist }; greet(); // outputs: "hello, world!" greet("alice"); // outputs: "hello, alice!" greet(null); //outputs: "hello, guest!"
Israel