.eslintrc.json

{
  "root": true,
  "parser": "@typescript-eslint/parser",
  "parserOptions": {
    "ecmaVersion": 2020,
    "sourceType": "module"
  },
  "extends": [
    "eslint:recommended",
    "plugin:@typescript-eslint/eslint-recommended",
    "plugin:@typescript-eslint/recommended"
  ],
  "plugins": [
    "@typescript-eslint",
    "simple-import-sort"
  ],
  "overrides": [
    {
      "files": [
        "*.ts"
      ],
      "rules": {
        "no-unneeded-ternary": [
          "error"
        ],
        "no-nested-ternary": [
          "error"
        ],
        "multiline-ternary": [
          "error",
          "always-multiline"
        ],
        "operator-linebreak": [
          "error",
          "before"
        ],
        "simple-import-sort/imports": [
          "warn",
          {
            "groups": [
              [
                "^@?\\w"
              ],
              // "type" imports.
              [
                "^.*\\u0000$"
              ],
              // Absolute imports and other imports such as Vue-style `@/foo`.
              // Anything not matched in another group.
              [
                "^"
              ],
              // Relative imports.
              // Anything that starts with a dot.
              [
                "^\\."
              ]
            ]
          }
        ],
        "simple-import-sort/exports": "warn",
        "object-curly-spacing": [
          "error",
          "always"
        ],
        "quotes": [
          "warn",
          "single"
        ],
        "func-style": [
          "warn",
          "declaration"
        ]
      }
    },
    {
      "files": [
        "*.spec.ts",
        "*.spec.tsx",
        "*.spec.js",
        "*.spec.jsx"
      ],
      "env": {
        "jest": true
      },
      "rules": {}
    },
    {
      "files": "*.json",
      "parser": "jsonc-eslint-parser",
      "rules": {}
    }
  ]
}