Different support for multi-package projects (a.k.a., workspaces), which impacts the maintainability and speed of large monorepos.Different approaches to storing packages on disk, which has implications on disk-space efficiency.Different lock file formats, each of which have performance implications.Different support for hoisting, which has security implications.Different dependency resolution algorithms with different node_modules folder structures (nested vs. ![]() If npm has been around for over 10 years, why are there any alternatives at all? Here are some key reasons why that have emerged: It established the core principles of how package managers work today. The very first package manager ever released was npm, back in January 2010. A brief history of JavaScript package managers This is the project I also used to create the performance table in the below section of this post.Īlthough the type of application is not important for the topic of this article, I have chosen a mid-size and realistic project to be able to illuminate different aspects as an example from the recent past, Yarn Berry’s PnP mechanism caused some heated discussions about compatibility issues that this project is suited to help examine. There exists a corresponding Git branch for every package manager variant. I’ve created a companion React app to demonstrate some of the different package managers’ unique concepts.
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