Deep Dive: How Async/Await Works Under the Hood with Event Loop Mechanics

Explain how [async programming feature] works under the hood in [programming language]. Cover: 1. Core mechanism and internal implementation details 2. How it interacts with [related concept 1] and [related concept 2] 3. Visual diagram or step-by-step execution flow 4. Code examples showing correct usage 5. Common pitfalls with code examples of what NOT to do 6. Performance implications and best practices Use simple analogies where appropriate to clarify complex concepts.