이 레슨은 당분간 영어로 제공돼요.
연습
Practice: open the hood
A page from an app such as Nova loads slowly, and its leaderboard widget stays empty. DevTools is open in front of you. Read the clues and fix what you find.
이 레슨은 당분간 영어로 제공돼요.
A page from an app such as Nova loads slowly, and its leaderboard widget stays empty. DevTools is open in front of you. Read the clues and fix what you find.