本课内容目前为英文。
Data in, events out
A PostCard that can only show one hard-coded post is not much use. Props let the parent hand each card its own post, and callback props let the card tell the parent what happened.
本课内容目前为英文。
A PostCard that can only show one hard-coded post is not much use. Props let the parent hand each card its own post, and callback props let the card tell the parent what happened.