Always guard against race conditions when working with asynchronous code. Implement these patterns to avoid unpredictable behavior: 1. **Always await async operations** ```javascript // Incorrect: Potential race condition processPreviousSentEmailsAction(emailAccountId); // Correct: Ensures operation completes before continuing await processPreviousSentEmailsAction(emailAccountId); ``` 2. **Disable interactive elements during async operations** ```javascript const [isLoading, setIsLoading] = useState(false); return ( { if (isLoading) return; setIsLoading(true); try { await someAsyncAction(); // Handle success } finally { setIsLoading(false); } }} > {isLoading ? 'Processing...' : 'Submit'} ); ``` 3. **Clean up event listeners in useEffect hooks** ```javascript useEffect(() => { if (!api) return; const handler = () => { // Handle event }; api.on("select", handler); return () => { // Clean up to prevent memory leaks api.off("select", handler); }; }, [api]); ``` These practices prevent issues like duplicate submissions, unhandled promises, memory leaks, and unpredictable UI behavior resulting from concurrent operations interfering with each other.