Asynchronous
also: async, asynchronously
Work that starts now and finishes later, so the program can keep going instead of freezing while it waits. Loading data over the internet is usually asynchronous.
An operation that returns control before its result is ready and delivers the result later, through a callback, a promise, or await. It is used for slow work like network calls, database queries, and file reads so the app stays responsive.
A burger place that hands you a buzzer. You don't stand frozen at the counter. You sit down, and the buzzer tells you when the food is ready.
Many confusing bugs come from code using a result before it has arrived, like showing "Saved!" before the save finishes. When your agent mentions async, awaiting, or promises, it's talking about this timing.
The save function is async, but the caller never awaits it, so the redirect happens before the write completes. I'll add the missing await.
The confirmation shows before the booking is actually saved. Check for an asynchronous call that isn't being awaited, and make the success message wait for the real result.
Thinking asynchronous means "happens in the background, so timing doesn't matter." Other code often depends on the result and must wait for it properly.