.eslintrc.json

{
  "env": {
    "browser": true,
    "node": true,
    "es6": true
  },
  "extends": [
    "plugin:import/recommended",
    "airbnb-typescript/base",
    "plugin:@typescript-eslint/eslint-recommended",
    "plugin:@typescript-eslint/recommended",
    "plugin:@typescript-eslint/recommended-requiring-type-checking"
  ],
  "parser": "@typescript-eslint/parser",
  "parserOptions": {
    "ecmaVersion": 2022,
    "sourceType": "module",
    "project": "./tsconfig.json"
  },
  "rules": {
    "max-len": ["error", { "code": 125 }],
    "no-nested-ternary": "off",
    "operator-linebreak": ["error", "after"],
    "@typescript-eslint/explicit-function-return-type": ["error", { "allowExpressions": true }],
    "import/no-extraneous-dependencies": ["error", { "devDependencies": true }],
    "@typescript-eslint/member-delimiter-style": [
      "error",
      {
        "multiline": {
          "delimiter": "semi",
          "requireLast": true
        },
        "singleline": {
          "delimiter": "semi",
          "requireLast": false
        }
      }
    ]
  }
}