What are promises in node.js?


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More Node.js Interview Questions

What is an event loop in node.js ?

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Is node js and javascript same?

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What is the command for import external libraries in node js?

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How do you close a file using node.js?

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What is typically the first argument passed to a node.js callback handler?

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What is blocking and nonblocking API in Node.js and how does it affect the architecture of your applications?

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How can you use middleware in node js?

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What is npm? What is the main functionality of npm?

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What are Global objects in Node.js?

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How will you convert a Buffer to JSON in Node.js?

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What are the differences between synchronous and asynchronous methods of the fs module?

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Why to use express.js?

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