Verifies that installed modules comply with the requirements specified in package.json.

By default checks engine ranges, peer dependency ranges and installed versions and, in mono-repos using workspaces, by default checks all workspaces as well as the workspace root.

Usage

Command line

 npm install -g installed-check

Then run it at the root of your project to validate the installed dependencies:

 installed-check

As npm script

 npm install --save-dev installed-check

 "scripts": {
  "test": "installed-check"
}

Programmatic use

Use installed-check-core

Checks

• --engine-check / -e – if set installed-check will check that the installed modules doesn't have stricter engines ranges than those in the package.json and suggests an alternative requirement if they do. If set, the default checks will be overriden.
• --peer-check / -p – if set installed-check will check that the installed modules doesn't have stricter peerDependencies ranges than those in the package.json and suggests an alternative requirement if they do. If set, the default checks will be overriden.
• --version-check / -c – if set installed-check will check that the installed modules comply with the version requirements set for them the package.json. If set, the default checks will be overriden.

Check options

• --ignore ARG / -i ARG – excludes the named dependency from non-version checks. Supports picomatch globbing syntax, eg. @types/* (but be sure to provide the pattern in a way that avoids your shell from matching it against files first)
• --ignore-dev / -d – if set then dev dependencies won't be included in the non-version checks.
• --strict / -s – treats warnings as errors

Fix options

• --fix – tries to apply all suggestions and write them back to disk

Workspace options

• --no-include-workspace-root – excludes the workspace root package. Negated equivalent of npm's --include-workspace-root
• --no-workspaces – excludes workspace packages. Negated equivalent of npm's --workspaces
• --workspace=ARG / -w ARG – excludes all workspace packages not matching these names / paths. Equivalent to npm's --workspace / -w
• --workspace-ignore=ARG – xcludes the specified paths from workspace lookup. (Supports globs)

Additional command line options

• --debug – prints debug info
• --verbose / -v – prints warnings and notices
• --help / -h – prints help and exits
• --version – prints current version and exits

Similar modules

• knip – finds unused files, dependencies and exports in your JavaScript and TypeScript projects – a great companion module to installed-check