Using a locked package is no different than using any package without a package
For example to run some postprocessing on the generated These scripts run for both package-lock.json and preshrinkwrapĪnd shrinkwrap are executed before the shrinkwrap, postshrinkwrap isĮxecuted afterwards. Property of the package.json, they will be executed in order. If preshrinkwrap, shrinkwrap or postshrinkwrap are in the scripts The tree is walked and any missing dependencies are installed in the usual Referenced in "resolved" if available, falling back to normal package resolution Reproducing the structure described in the file, using the specific files The module tree described by the package lock is reproduced. The presence of a package lock changes the installation behavior such that: Work off this file, instead of recalculating dependency versions off Once it's present, any future installation will base its This file describes an exact, and more importantly reproducible node_modules tree. The registry you installed from is no longer available, or allows mutation of versions (unlike the primary npm registry), and a different version of a package exists under the same version number now.
#$ npm install slack keep presence update#
There are multiple reasons for this:ĭifferent versions of npm (or other package managers) may have been used to install a package, each using slightly different installation algorithms.Ī new version of a direct semver-range package may have been published since the last time your packages were installed, and thus a newer version will be used.Ī dependency of one of your dependencies may have published a new version, which will update even if you used pinned dependency specifiers ( 1.2.3 instead of ^1.2.3) In an ideal world, npm would work like a pureįunction: the same package.json should produce the exact same node_modules "output" is a fully-formed node_modules tree: a representation of theĭependencies you declared. Conceptually, the "input" to npm install is a package.json, while its
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