freeCodeCamp/guide/english/certifications/front-end-libraries/react/add-comments-in-jsx/index.md

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Add Comments in JSX

Add Comments in JSX

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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 -->