/munetakaJupyterHub/Computer/ECMAScript/96-package-lock.json.md

¶Description

package-lock.json is automatically generated for any operations where npm modifies either the node_modules tree, or package.json. It describes the exact tree that was generated, such that subsequent installs are able to generate identical trees, regardless of intermediate dependency updates.
This file is intended to be committed into source repositories, and serves various purposes:
Describe a single representation of a dependency tree such that teammates, deployments, and continuous integration are guaranteed to install exactly the same dependencies.
Provide a facility for users to "time-travel" to previous states of node_modules without having to commit the directory itself.
Facilitate greater visibility of tree changes through readable source control diffs.
Optimize the installation process by allowing npm to skip repeated metadata resolutions for previously-installed packages.
As of npm v7, lockfiles include enough information to gain a complete picture of the package tree, reducing the need to read package.json files, and allowing for significant performance improvements.