Node.js NPM & Package Management 5

Question 1

What does `npm pack` do?

Accepted Answer

Creates a tarball (.tgz) of the package as it would be published

Answer

`npm pack` generates a `.tgz` tarball identical to what `npm publish` would upload, useful for local testing before publishing.

Question 2

Which npm workspaces command installs dependencies for all workspace packages at once?

Accepted Answer

Both A and B are valid

Answer

Both `npm install --workspaces` and `npm install -ws` install dependencies for all packages in the workspaces, as `-ws` is the shorthand flag.

Question 3

What does the `files` field in package.json control?

Accepted Answer

Files included in the published npm package

Answer

The `files` field is a whitelist of files and directories to include in the published tarball; it takes precedence over `.npmignore`.

Question 4

What is the difference between `dependencies` and `devDependencies`?

Accepted Answer

`dependencies` are needed at runtime; `devDependencies` are only needed during development/testing

Answer

`dependencies` are required to run the application in production, while `devDependencies` (like test frameworks or build tools) are only needed locally.

Question 5

What does `npm version patch` do?

Accepted Answer

Increments the patch segment of the version and creates a git tag

Answer

`npm version patch` bumps the patch number (e.g., `1.0.0` → `1.0.1`), updates package.json, and creates a git commit and tag.

Node.js Practice Test

Node.js Practice Test

Node.js NPM & Package Management 5