NPM and Yarn are package managers that help to manage a project’s dependencies. A dependency is, something that a project depends on, a piece of code that is required to make the project work properly.
npm:
The package manager for JavaScript. npm is the command-line interface to the npm ecosystem.NPM generates a correct lock file whereas a Yarn lock file could be corrupt in some cases and has to be fixed with yarn-tools.
Yarn:
A new package manager for JavaScript. Yarn caches every package it downloads so it never needs to again. It also parallelizes operations to maximize resource utilization so install times are faster than ever.
npm: The package manager for JavaScript. npm is the command-line interface to the npm ecosystem.NPM generates a correct lock file whereas a Yarn lock file could be corrupt in some cases and has to be fixed with yarn-tools.
Yarn: A new package manager for JavaScript. Yarn caches every package it downloads so it never needs to again. It also parallelizes operations to maximize resource utilization so install times are faster than ever.