このレッスンは、現在英語のみです。
Rendering lists
A leaderboard, a feed, a chat: most screens are lists. map turns data into elements, and keys keep every element tied to the right item.
このレッスンは、現在英語のみです。
A leaderboard, a feed, a chat: most screens are lists. map turns data into elements, and keys keep every element tied to the right item.