Support ESLint 9.x

[1Luc1]

ESLint v9.0.0 is released !

It would be awesome to have official ESLint 9 support.
https://eslint.org/blog/2024/04/eslint-v9.0.0-released/

[Cyrille Pontvieux]

eslint-plugin-vue now support flat config. Can this repo do the same please?

[Ken Kieu]

import vuetify from 'eslint-config-vuetify'

{
  ... 
  rules: {
      ...vuetify.rules,
      // Other rules
  }
  ...
}

[1Luc1]

import vuetify from 'eslint-config-vuetify'

{
  ... 
  rules: {
      ...vuetify.rules,
      // Other rules
  }
  ...
}

// .eslintrc.js
https://eslint.org/docs/latest/use/configure/migration-guide

@kieuminhcanh meant to have dependency support for ESLint 9.x; still get ERESOLVE unable to resolve dependency tree for npm update:

npm ERR! While resolving: rehearsal-room-web@1.0.3
npm ERR! Found: eslint@9.0.0
npm ERR! node_modules/eslint
npm ERR!   dev eslint@"^9.0.0" from the root project
npm ERR! 
npm ERR! Could not resolve dependency:
npm ERR! peer eslint@"^8.0.0" from eslint-plugin-vuetify@2.4.0
npm ERR! node_modules/eslint-plugin-vuetify
npm ERR!   dev eslint-plugin-vuetify@"^2.4.0" from the root project

[Corbin Uselton]

@kieuminhcanh Can you please reopen? This request was for eslint-plugin-vuetify not eslint-config-vuetify.

[Corbin Uselton]

@1Luc1 I tried updating this repo to 9 but all the tests fail for not being flat file config. I will take a look to see if I can get them updated tomorrow and make a PR