npm-prune
Remove extraneous packagesTable of contents
Synopsis
npm prune [[<@scope>/]<pkg>...] [--production] [--dry-run] [--json]
Description
This command removes “extraneous” packages. If a package name is provided, then only packages matching one of the supplied names are removed.
Extraneous packages are those present in the node_modules
folder that are
not listed as any package’s dependency list.
If the --production
flag is specified or the NODE_ENV
environment
variable is set to production
, this command will remove the packages
specified in your devDependencies
. Setting --no-production
will negate
NODE_ENV
being set to production
.
If the --dry-run
flag is used then no changes will actually be made.
If the --json
flag is used, then the changes npm prune
made (or would
have made with --dry-run
) are printed as a JSON object.
In normal operation, extraneous modules are pruned automatically, so you’ll
only need this command with the --production
flag. However, in the real
world, operation is not always “normal”. When crashes or mistakes happen,
this command can help clean up any resulting garbage.