.eslintrc.json

{
  "env": {
    "browser": true,
    "node": true,
    "es2021": true,
    "webextensions": true,
    "jquery": true
  },
  "globals": {
    "JQuery": true
  },
  "parser": "@typescript-eslint/parser",
  "extends": ["eslint:recommended"],
  "parserOptions": {
    "ecmaVersion": 12,
    "sourceType": "module"
  },
  "plugins": ["@typescript-eslint"],
  "rules": {
    "no-unused-vars": ["warn"],
    "@typescript-eslint/explicit-function-return-type": [
      "error",
      {
        "allowExpressions": true
      }
    ],
    "@typescript-eslint/no-inferrable-types": [
      "error",
      {
        "ignoreProperties": false,
        "ignoreParameters": false
      }
    ],
    "padding-line-between-statements": [
      "error",
      { "blankLine": "always", "prev": "*", "next": "return" },
      {
        "blankLine": "always",
        "prev": ["const", "let"],
        "next": ["block-like"]
      },
      { "blankLine": "always", "prev": "import", "next": "*" },
      { "blankLine": "any", "prev": "import", "next": "import" }
    ]
  }
}