.eslintrc.json

{
  "root": true,
  "parser": "@babel/eslint-parser",
  "plugins": [
    "@babel",
    "prettier"
  ],
  "parserOptions": {
    "ecmaVersion": 12,
    "requireConfigFile": false
  },
  "env": {
    "es6": true,
    "browser": false,
    "commonjs": true,
    "node": true
  },
  // Start with rules from eslint recommended setting, and override below.
  "extends": [
    "eslint:recommended",
    "plugin:prettier/recommended"
  ],
  // Linting rules are enforced based on the following levels:
  // (Reference: http://eslint.org/docs/user-guide/configuring)
  // 0: turn the rule off
  // 1: turn the rule on as a warning (doesn't affect exit code)
  // 2: turn the rule on as an error (exit code is 1 when triggered)
  "rules": {
    // Disallow littering with unused variables (except function args).
    "no-unused-vars": [
      2,
      {
        "vars": "all",
        "args": "none"
      }
    ],
    "prettier/prettier": [
      "error",
      {
        "endOfLine": "auto"
      }
    ]
  },
  "ignorePatterns": [
    "dist/",
    "node_modules/"
  ]
}