.eslintrc.js

module.exports = {
  "extends": ["eslint:recommended"],

  "env": {
    "es6": true
  },

  "globals": {
    "process": true,
    "console": true,
    "setTimeout": true,
    "global": true,
    "require": true,
    "_esdown": true
  },

  "rules": {
    "no-console": ["error", { "allow": ["warn", "error"] }],
    "no-cond-assign": ["off"],
    "no-constant-condition": ["off"],
    "no-empty": ["error", { "allowEmptyCatch": true }],
    "camelcase": ["error", { "properties": "always" }],
    "brace-style": ["error", "1tbs", { "allowSingleLine": true }],
    "eqeqeq": ["error", "smart"],
    "indent": ["error", 2, { "SwitchCase": 1 }],
    "no-throw-literal": ["error"],
    "comma-spacing": ["error", { "before": false, "after": true }],
    "comma-style": ["error", "last"],
    "comma-dangle": ["error", "always-multiline"],
    "keyword-spacing": ["error"],
    "no-trailing-spaces": ["error"],
    "no-multi-spaces": ["error"],
    "no-spaced-func": ["error"],
    "no-whitespace-before-property": ["error"],
    "space-before-blocks": ["error"],
    "space-before-function-paren": ["error", "never"],
    "space-in-parens": ["error", "never"],
    "eol-last": ["error"],
    "quotes": ["error", "single", { "avoidEscape": true }],
    "no-implicit-globals": ["error"],
    "no-useless-concat": ["error"],
    "space-infix-ops": ["error", { "int32Hint": true }],
    "semi-spacing": ["error", { "before": false, "after": true }],
    "semi": ["error", "always"],
    "object-curly-spacing": ["error", "always"],
    "array-bracket-spacing": ["error"],
    "max-len": ["error", 100]
  },

  "parserOptions": {
    "ecmaVersion": 6,
    "sourceType": "module",
    "ecmaFeatures": {
      "jsx": true
    }
  }
};