freeCodeCamp Challenge Guide: Add Comments in JSX

Add Comments in JSX


Problem Explanation

You can comment as you used to do with code blocks in JavaScript /* some JS code */ but they need to wrapped by curly braces to add comments in JSX:

For example:

  • Single-line comment:
{/*<h1>Hanoi University of Science</h1>*/}
  • Multi-line comments:
{/*
<h1>Hanoi University of Science</h1>
<p>Falculty of Mathematics, Mechanics and Informatics</p>  
*/}

Notice: You can’t use HTML comment in JSX like this:

<!-- not working -->