In JavaScript, especially in Node.js, handling operations is crucial because is designed to handle non-blocking operations. This means it can perform other tasks while waiting for operations like file reading, database queries, or network requests to complete.
A is a function passed into another function as an argument and executed after some operation has completed.
provide a cleaner and more manageable way to handle asynchronous operations compared to callbacks, especially with complex sequences
A promise is an object that represents the eventual completion or failure of an asynchronous operation.
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