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Tirtha Guha
Web technologies enthusiast
Npm has system level cache, ~/npm on posix and %LocalAppData%/npm-cache on Windows.
~/npm
%LocalAppData%/npm-cache
If a dependency+version matches, npm pulls the package from this cache, instead of over the internet.
Edrick Leong
Thanks Tirtha for pointing this out!
I've removed the third point about npm being slow due to not having a global cache.