.eslintrc.json

{
  "env": {
    "browser": true,
    "es2017": true
  },
  "extends": "eslint:recommended",
  "parserOptions": {
    "ecmaVersion": 2017
  },
  "rules": {
    "indent": [
      "error",
      2,
      {
        "SwitchCase": 1,
        "ArrayExpression": "first",
        "ObjectExpression": "first",
        "MemberExpression": "off",
        "FunctionDeclaration": {
          "parameters": "first",
          "body": 1
        },
        "CallExpression": {
          "arguments": "first"
        },
        "outerIIFEBody": 0,
        "ignoreComments": false,
        "flatTernaryExpressions": true,
        "VariableDeclarator": 1
      }
    ],
    "comma-dangle": [
      "error",
      "always-multiline"
    ],
    "space-before-function-paren": [
      "error",
      "never"
    ],
    "keyword-spacing": [
      "error",
      {
        "after": false,
        "overrides": {
          "return": {
            "after": true
          },
          "var": {
            "after": true
          },
          "case": {
            "after": true
          }
        }
      }
    ],
    "key-spacing": [
      "error",
      {
        "afterColon": true
      }
    ],
    "object-curly-spacing": [
      "error",
      "never",
      {
        "objectsInObjects": true
      }
    ],
    "space-in-parens": [
      "error",
      "never"
    ],
    "space-before-blocks": [
      "error",
      "never"
    ],
    "no-multi-spaces": "error"
  },
  "globals": {
    "Ext": "readonly",
    "NOC": "readonly",
    "Viz": "readonly",
    "joint": "readonly",
    "L": "readonly",
    "__": "readonly"
  }
}