What is the purpose of module.exports in Node.js?

Instruction: Explain how module.exports is used in Node.js applications.

Context: This question tests the candidate's understanding of the module system in Node.js, specifically how functionality is exposed from one module to another.

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Thank you for posing such an essential question, especially when discussing the intricacies of Node.js applications. The purpose of module.exports in Node.js is to expose functions, objects, or variables from a module so they can be used in other modules...

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