How to use npm dedupe(deduplicate) In NPM
The npm dedupe command used for analyzing and making the project’s dependency tree much shorter by removing unnecessary copies of packages within your project’s dependency tree. It searches for shared dependencies which are packages used by multiple packages in your project and then attempts to move them higher in the tree thus reducing disk space and improving efficiency in some cases.
You need not required to install anything as this dedupe is a native command of npm. Now the steps to use it is as follows:
Step 1: The terminal should be opened in your project root where package.json file is there. Use the cd command to navigate to the required directory.
cd <path>
Step 2: Run npm dedupe to analyze your dependency tree and removing unnecessary copies of packages.
npm dedupe
How to override nested NPM dependency versions?
In projects the packages download and used using npm are called dependency and each dependencies can have their own nested dependencies that also gets downloaded. These nested dependency creates conflicts due to the presence of multiple version of the same dependency. This will lead to issues like compatibility, security vulnerabilities, and unexpected behavior.
To solve that we got multiple ways such as overrides property in package.json file, npm-force-resolutions, npm dedupe, npm-check-updates or yarn-upgrade-all.
Table of Content
- Manual override in package.json
- Utilizing npm’s npm-force-resolutions
- Using npm dedupe(deduplicate)
- Automation with npm-check-updates or yarn-upgrade-all
- npm users
- yarn users
- Testing and documentation for changes
- Best practices for management