TypeScript support for config file (vue.config.ts)

What problem does this feature solve?

Type tracking when configured.

What does the proposed API look like?

can config width: vue.config.ts or vue.config.js:

  const VueConf = require('@vue/conf');
  VueConf({
    // baseUrl/assetsDir/devServer/... conf in here
  });

[ktsn]

I’ll work on the vue.config.ts support. 👍

[yyx990803]

I think we could have something like webpack does:

// vue.config.ts

import { Config } from '@vue/cli-service'

const config: Config = {
  // ...
}

export default config

If anyone want to work on this that’d be great. /cc @ktsn @HerringtonDarkholme