Yarn

There is really no real reason why not to use Yarn today. It's much faster than npm, and you will need a dependency management system anyway. The only thing that might be missing is the fact that it doesn't come natively with NodeJS, and you have to install it yourself. I'd like to see the NodeJS ecosystem include Yarn by default.

Incentivized

• Package management
• Speed of download compared to npm
• Moduel version control

Incentivized

• Rarely, some server connection error appear, while npm works alright.
• Sometimes, deleting the whole vendor directory is the best solution to solve weird issues.
• You still might need npm to install Yarn.

Incentivized

Compared to npm, Yarn is a clear winner here. npm does not look to be getting any improvements recently. And it's much much slower to run when installing project dependencies. This has a clear impact on the developer productivity but also makes deployments slower. So Yarn is still a much superior choice.

Incentivized

• Deployments happen much faster.
• Building and testing our apps is much more streamlined and efficient.
• Makes it easier to write reusable code.

Incentivized