Question 1

How to update all npm packages to the latest versions?

Accepted Answer

Use `npm update` to update within semantic versioning ranges. For major updates, check `npm outdated` and manually install with `npm install package@latest`. Always review changelogs for breaking changes.

Question 2

What's the difference between npm install and npm ci?

Accepted Answer

`npm install` updates dependencies and the lockfile, while `npm ci` performs a clean install using the exact versions in package-lock.json, ensuring deterministic builds ideal for continuous integration.

Question 3

npm vs pnpm: which is faster for installs?

Accepted Answer

pnpm is generally faster and uses less disk space due to its symlink-based approach, while npm has broader ecosystem support. For performance-critical projects, pnpm might be a better choice.

Question 4

How to fix npm permissions errors on Linux?

Accepted Answer

Avoid using sudo; instead, fix ownership with `sudo chown -R $USER:$GROUP ~/.npm` or use a version manager like nvm to install npm without root privileges.

Question 5

Can I use npm with TypeScript projects?

Accepted Answer

Yes, npm works seamlessly with TypeScript. Install TypeScript via `npm install typescript` and manage type definitions with `@types` packages, integrating with build tools like tsc.

Question 6

How to publish a private package to npm?

Accepted Answer

Use `npm publish` with a scoped package name (e.g., @myorg/package) and configure registry settings. For private registries, set up .npmrc with authentication tokens.

Troubleshooting

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Frequently Asked Questions