TypeError: ReactDOM.render is not a functionIn codepen

Hello problem solvers!

I’ve just completed (hopefully, haven’t run the tests yet) the Markdown Preview project. I did it locally and then transferred to codepen.

Here is the error I’m getting:
TypeError: ReactDOM.render is not a function

Has anyone run into this? Any suggestions?

If you do take a look and have any comments on my code please feel free to pass them along.

5 Likes

You need to switch the load order of the scripts. Load react first, then react-dom.

On the JS tab in the Codepen settings, you can grab the icon on the left of the script and drag its position up or down.

5 Likes

It worked! Thanks for the help.