.eslintrc.json

{
  "root": true,
  "parser": "@typescript-eslint/parser",
  "plugins": ["@typescript-eslint"],
  "extends": [
    "eslint:recommended",
    "plugin:@typescript-eslint/eslint-recommended",
    "plugin:@typescript-eslint/recommended"
  ],
  "env": {
    "browser": true,
    "es6": true,
    "mocha": true
  },
  "globals": {
    "Atomics": "readonly",
    "SharedArrayBuffer": "readonly"
  },
  "parserOptions": {
    "ecmaVersion": 11,
    "sourceType": "module"
  },
  "rules": {
    "no-trailing-spaces": "error",
    "prefer-const": "off",
    "no-useless-escape": "off",
    "comma-spacing": [
      "error",
      {
        "before": false,
        "after": true
      }
    ],
    "keyword-spacing": ["error", { "before": true }],
    "space-infix-ops": "error",
    "object-curly-spacing": ["error", "always"],
    // "semi": ["warn", "never"],
    "eol-last": ["error", "always"],
    "comma-dangle": ["error", "never"],
    "no-multi-spaces": "error",
    "no-multiple-empty-lines": "error",
    "no-irregular-whitespace": "error",
    "arrow-parens": ["error", "always"],
    "arrow-spacing": ["error", { "before": true, "after": true }],
    "block-spacing": "error",
    "comma-style": "error",
    "no-unused-vars": ["off"] // Use @typescript-eslint/no-unused-vars instead, otherwise there will be checked twice
  }
}