How does promise and queue work?
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Answer / Reema
A Promise in Node.js represents a value that may not be available yet but will be resolved at some point in the future. It returns a single value, either a resolved value or a reason why it's rejected. A Queue, on the other hand, is a collection of waiting tasks to be executed in a specific order. In Node.js, child_process.Queue can be used for asynchronous job processing where each job runs in its own process.
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