.eslintrc.json

{
  "globals":  {
    "wysihtml": 1,
    "rangy": 1
  },
  "env": {
    "browser": true
  },
  "extends": "eslint:recommended",
  "installedESLint": true,
  "parserOptions": {
    "sourceType": "script"
  },
  "rules": {
    "indent": [
      "error",
      2,
      { "VariableDeclarator": 2, "SwitchCase": 1 }
    ],
    "linebreak-style": [
      "error",
      "unix"
    ],
    "no-multiple-empty-lines": [
      "error",
      { "max": 1 }
    ],
    "no-multi-spaces": [
       "error"
    ],
    "no-trailing-spaces": [
      "error",
      { "skipBlankLines": false }
    ],
    "one-var": [
      2,
      "always"
    ],
    "quotes": [
      "error",
      "single"
    ],
    "semi": [
      "error",
      "always"
    ],
    "space-infix-ops": [
      "error"
    ],
    "keyword-spacing": [
      "error",
      { "after": true }
    ],
    "array-bracket-spacing": ["error", "never"],
    "space-in-parens": ["error", "never"],
    "computed-property-spacing": ["error", "never"]
  }
}