Learn
So far, we’ve focused on writing JSX expressions. It’s similar to writing bits of HTML, but inside of a JavaScript file.
In this lesson, we’re going to add something new: regular JavaScript, written inside of a JSX expression, written inside of a JavaScript file.
Whoaaaa…
Instructions
1.
Starting on line 5, carefully write the following code. What do you think will appear in the browser?
ReactDOM.render( <h1>2 + 3</h1>, document.getElementById('app') );
Take this course for free
By signing up for Codecademy, you agree to Codecademy's Terms of Service & Privacy Policy.