Yarn

[verschoof]

NPM has no lock file that causes problems.

So to solve this we have to implement Yarn

[cookieguru]

NPM 5.0.0 introduced package-lock.json

[jaspernbrouwer]

Also, I'm working (slowly) on an experiment involving a frontend application which will communicatie with the backend through command messages and will listen to events coming back. That frontend application is a ReactJS app, which uses yarn, webpack, etc.
So I wouldn't spend too much time on swapping out package-managers and build-tools regarding JS :)

[cookieguru]

I just finished migrating a bunch of repos at work off yarn and back to npm as yarn would frequently exit silently midway through installing packages.