Vue-cli: Docs overhaul

[Akryum]

Reference issue for docs refactor

We are planning on overhauling the documentation for vue-cli soon. There will be two docs sites:

• User Manual (for the users of vue-cli and vue-cli ui)
• Plugin developer docs

Checklist:

• Improve docs (obviously)
• Move the plugin development docs to a separate website (for example vue-cli-dev.vuejs.org)
• Create a complete plugin dev guide
• Create a full API reference

[Akryum]

cc @NataliaTepluhina

[NataliaTepluhina]

Working on plugin dev guide + API reference

[JonathanDn]

@Akryum I would love to help if you could guide me to a specific area in the docs that need mending/improving

[christiannwamba]

@Akryum same as @JonathanDn

Would love to help if there's a path or somewhere you would love us to get started from.

Thanks

[rkunev]

Bumping the Docs overhaul issue!

I think there's an opportunity to improve the docs about Build Targets and the --target lib. Specifically, about useBuiltIns config for lib authors. @vue/babel-preset-app docs already explain it, but I think it's not easy to find this information and a number of projects ship dist files sometimes twice as large, just because of the polyfills.

Here's a fresh example of how just using the Number prop validator like this:

props: {
  limit: {
    type: Number, // <- es6.number.constructor polyfill is added
    default: 0
  }
}

increases the (unminified) bundle size from 17.33 KiB to 39.42 KiB.

Would you be interested in a Pull Request for the docs?
cc: @Akryum @NataliaTepluhina

[nklayman]

With the release of vue cli v4, it would be really nice to have a guide on migrating plugins. It also appears as if the new migrate feature is undocumented.