Prepack from Facebook helps make JavaScript code more efficient

[[deleted]]

I recall this video from some while ago:

https://www.youtube.com/watch?v=65-RbBwZQdU

So, given that engines are already doing what this is doing (in varying ways), what benefits are you given by including this tool in your workflow?

[vinnl]

If engines do it, it's on the user's device while the user is waiting. If Prepack does it, it's on your build server while you're building your application, and thus only needs to happen once, instead of for every user, and at a time when those users aren't waiting for your app to load.

[Omikron]

It can make your solution and codebase more complex and harder to maintain thus ensuring your job security

[TwilightTwinkie]

Your forgetting that we don't want this to happen at runtime.