Welcome to the Treehouse Community

The Treehouse Community is a meeting place for developers, designers, and programmers of all backgrounds and skill levels to get support. Collaborate here on code errors or bugs that you need feedback on, or asking for an extra set of eyes on your latest project. Join thousands of Treehouse students and alumni in the community today. (Note: Only Treehouse students can comment or ask questions, but non-students are welcome to browse our conversations.)

Looking to learn something new?

Treehouse offers a seven day free trial for new students. Get access to thousands of hours of content and a supportive community. Start your free trial today.

JavaScript React Basics Introducing Props Iterating and Rendering with map()

Takuya Hirata
Takuya Hirata
23,295 Points


I think the map() method returns a new array. If so, how the code below works?

{props.initialPlayers.map( player => <Player name={player.name} score={player.score} key={player.id.toString()}/> )}

2 Answers

It returns an array with each array item containing a piece of JSX. When this is transpiled (converted to HTML and JavaScript) by Babel, it will appear as a set of HTML elements.