.eslintrc

{
  "extends": [
    "standard",
    "prettier",
    "plugin:@typescript-eslint/recommended",
    "plugin:import/typescript",
    "plugin:jest/recommended"
  ],
  "parser": "@typescript-eslint/parser",
  "parserOptions": {
    "jsx": true,
    "ecmaVersion": 2018,
    "sourceType": "module"
  },
  "rules": {
    "no-var": "error", // optional, recommended when using es6+
    "no-unused-vars": 0,
    "arrow-spacing": ["error", { "before": true, "after": true }], // recommended
    "comma-dangle": [
      "error",
      {
        "objects": "only-multiline",
        "arrays": "only-multiline",
        "imports": "only-multiline",
        "exports": "only-multiline",
        "functions": "only-multiline"
      }
    ],

    // options to emulate prettier setup
    "semi": ["error", "always"],
    "max-len": "off",
    "template-curly-spacing": ["error", "never"],
    "arrow-parens": ["error", "as-needed"],
    "indent": "off",

    // standard.js
    "space-before-function-paren": [
      "error",
      {
        "named": "never",
        "anonymous": "always",
        "asyncArrow": "always"
      }
    ],

    // Typescript
    "@typescript-eslint/no-empty-function": "off",
    "@typescript-eslint/ban-types": "off",

    // note you must disable the base rule as it can report incorrect errors
    "no-use-before-define": "off",
    "@typescript-eslint/no-use-before-define": ["error"],
  },
  "settings": {
    "import/parsers": {
      "@typescript-eslint/parser": [".ts", ".tsx"]
    }
  }
}