Welcome to the Treehouse Community

Want to collaborate on code errors? Have bugs you need feedback on? Looking for an extra set of eyes on your latest project? Get support with fellow developers, designers, and programmers of all backgrounds and skill levels here with the Treehouse Community! While you're at it, check out some resources Treehouse students have shared here.

Looking to learn something new?

Treehouse offers a seven day free trial for new students. Get access to thousands of hours of content and join thousands of Treehouse students and alumni in the community today.

Start your free trial

JavaScript React Basics (2018) Introducing Props Iterating and Rendering with map()

Takuya Hirata
Takuya Hirata
23,296 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.