.eslintrc.js

/* eslint-env node */
module.exports = {
  env: {
    browser: true,
    es2021: true,
  },
  extends: [
    "eslint:recommended",
    "plugin:react/recommended",
  ],
  parserOptions: {
    ecmaFeatures: {
      jsx: true,
    },
    ecmaVersion: 13,
    sourceType: "module",
  },
  plugins: ["react"],
  rules: {
    indent: [
      "error",
      2,
    ],
    "linebreak-style": [
      "error",
      "unix",
    ],
    quotes: [
      "error",
      "single",
    ],
    semi: [
      "error",
      "always",
    ],
    "arrow-parens": ["error", "as-needed"],
    "react/prop-types": "off",
    "object-curly-spacing": ["error", "always"],
    "space-infix-ops": "error",
    "react/no-unescaped-entities": "off",
    "react/jsx-key": "off",
    "no-unused-vars": "warn",
    // 'no-unused-vars': 'warn',

    /*
     * 'no-magic-numbers': 'off',
     * 'sort-keys': 'off',
     * 'padded-blocks': 'off',
     * 'function-call-argument-newline': 'off',
     * 'space-before-function-paren': 'off',
     * 'comma-dangle': ['error', 'always-multiline'],
     * 'array-element-newline': 'off',
     * 'dot-location': ['error', 'property'],
     * 'no-ternary': 'off',
     * 'no-nested-ternary': 'off',
     * 'no-confusing-arrow': 'off',
     * 'id-length': 'off',
     * 'quote-props': ['error', 'as-needed'],
     * 'multiline-ternary': 'off',
     */
  },
};