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I'm kind of swinging in the dark here. Here's the challenge:

This challenge contains a form that will accept a first and last name (separated with a space), and display the last name first, then a comma, then the first name. Your challenge is to create a variable newText, and assign a replacement string to that variable. Be careful to match the exact variable name, because that's what is passed into replace(). You'll also need to reference the values captured by the parentheses in the regex.

I went with const newText = '$2 $1'; but that's not it. Any ideas? Thanks for the help!

function reformatName(text) {
  const rawName = /^(\w+)\s(\w+)$/;
  // Type your answer on line 5, below:
  const newText = '$2 $1'; 
  return text.replace(rawName, newText);
const form = document.querySelector("form");
const input = form.querySelector("input");
const reformatted = document.getElementById("reformatted");
form.addEventListener("submit", e => {
  e.preventDefault();
  reformatted.textContent = reformatName(input.value);
    <div id="content">
            <label for="name">Enter your first and last name, please.</label>
            <br />
            <input type="text" id="name" name="name">
            <button type="submit">Reformat</button>
        </form>
            <h2>Reformatted name:</h2>
                <p id="reformatted"></p>
        </div>
    </div>
    <script src="app.js"></script>
</body>
</html>
      
You're close, but you overlooked part of the instructions, which said, "display the last name first, then a comma, then the first name".
You got the names in the right order, but you forgot the comma.