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How do you test Node.js applications?

Node.js applications can be tested using frameworks such as Jest, Mocha, and Supertest. Testing includes unit tests, integration tests, API tests, and end-to-end tests. Automated testing improves code quality and reduces production bugs.

Related Drills

How would you handle global error boundaries in Express or Node.js backend apps?

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What is Node.js and why is it used?

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What is the difference between Node.js and JavaScript?

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JB

Jeevan Bhargav

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This answer is calibrated for technical interviews. Verify benchmarks in local sandboxes before deploying.