.eslintrc

{
  "root": true,
  "ignorePatterns": [
    "*.d.ts"
  ],
  "extends": [
    "airbnb-typescript/base"
  ],
  "parserOptions": {
    "project": "./tsconfig.eslint.json"
  },
  "rules": {
    "max-len": ["error", {
      "code": 100,
      "ignoreComments": true,
      "ignoreStrings": true,
      "ignoreTemplateLiterals": true
    }],
    "@typescript-eslint/lines-between-class-members": ["error", "always", {
      "exceptAfterSingleLine": true
    }],
    "prefer-destructuring": "off",
    "import/prefer-default-export": "off",
    "no-plusplus": "off",
    "comma-dangle": "off",
    "no-underscore-dangle": "off",
    "no-param-reassign": ["error", { "props": false }],
    "no-mixed-operators": "off",
    "no-prototype-builtins": "off",
    "no-confusing-arrow": "off",
    "no-return-assign": 1,
    "arrow-body-style": "off",
    "prefer-spread": "off",
    "max-classes-per-file": "off",
    "arrow-parens": ["error", "as-needed", {
      "requireForBlockBody": true
    }],
    "object-curly-newline": ["error", {
      "ObjectPattern": "never"
    }],
    "import/no-extraneous-dependencies": ["error", {
      "devDependencies": [
        "tools/**/*.js",
        "**/*.spec.js",
        "**/*/spec_helper.js",
        "**/*/rollup.config.js"
      ]
    }]
  },
  "overrides": [
    {
      "files": [
        "packages/*/spec/**/*.{js,ts}"
      ],
      "env": {
        "mocha": true
      },
      "globals": {
        "expect": true
      },
      "rules": {
        "@typescript-eslint/semi": ["error", "never"],
        "@typescript-eslint/no-use-before-define": "off",
        "@typescript-eslint/no-unused-expressions": "off",
        "import/no-extraneous-dependencies": "off"
      }
    }
  ]
}