Node.js · Junior · Question 26 of 75

How is `npm ci` different from `npm install`?

1It only checks for vulnerabilities and installs nothing
✓Correct answer: It installs exactly what the lock file says, deletes node_modules first and fails if the lock file and package.json don't match
3It installs packages faster by skipping dependencies

Explanation

npm ci is meant for CI and Docker builds where installs must be clean and reproducible. It never changes package.json or the lock file.

Further reading

npm Docs: npm ci ↗

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