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Technical2026-08-13

How to achieve Asynchronicity in JS

AI-Expanded — inferred from the question title, not from the original candidate report

Explain the differences between callbacks, promises, and async/await in JavaScript, and describe how each approach handles non-blocking operations and error propagation. Provide a practical example of how you would refactor a function that uses nested callbacks into a cleaner, asynchronous implementation using modern syntax.

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