Why are callback functions used?


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More Node.js Interview Questions

Is it possible to evaluate simple expressions using node repl?

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What is template engine?

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What is piping in node?

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What types of tasks can be done asynchronously using the event loop?

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How do you extract post data in node.js?

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What is the difference between the global installation of dependencies and local installation of dependencies?

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What is a node process?

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Define the concept of the test pyramid.

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Where you can deploy node application?

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How does node js handle child threads?

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Is node js worth learning?

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What is asynchronous code?

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