.eslintrc.json

{
  "root": true,
  "parser": "vue-eslint-parser",
  "plugins": [
    "@typescript-eslint",
    "prettier",
    "vue"
  ],
  "extends": [
    "eslint:recommended",
    "plugin:@typescript-eslint/recommended",
    "plugin:@typescript-eslint/eslint-recommended",
    "plugin:import/errors",
    "plugin:import/warnings",
    "plugin:import/typescript",
    "plugin:prettier/recommended",
    "prettier",
    "prettier/@typescript-eslint",
    "plugin:vue/essential",
    "@vue/typescript/recommended",
    "@vue/prettier",
    "@vue/prettier/@typescript-eslint"
  ],
  "parserOptions": {
    "ecmaVersion": 2020,
    "parser": "@typescript-eslint/parser"
  },
  "env": {
    "node": true,
    "browser": true
  },
  "settings": {
    "import/resolver": {
      "node": {
        "extensions": [
          ".js",
          ".ts"
        ]
      }
    }
  },
  "rules": {
    "prettier/prettier": "warn",
    "lines-between-class-members": "off",
    "no-console": "off",
    "class-methods-use-this": "off",
    "@typescript-eslint/interface-name-prefix": "off",
    "@typescript-eslint/camelcase": "off",
    "import/no-unresolved": "off",
    "no-unused-expressions": [
      "error",
      {
        "allowTernary": true
      }
    ],
    "no-plusplus": [
      "error",
      {
        "allowForLoopAfterthoughts": true
      }
    ],
    "radix": [
      "error",
      "as-needed"
    ],
    "import/no-extraneous-dependencies": [
      "error",
      {
        "devDependencies": true,
        "optionalDependencies": true,
        "peerDependencies": false
      }
    ]
  }
}