.eslintrc.json

{
  "ecmaFeatures": {
    "modules": true
  },
  "env": {
    "browser": false,
    "es6": true,
    "node": true
  },
  "extends": "eslint:recommended",
  "rules": {
    "array-bracket-spacing": [2, "never"],
    "arrow-parens": [2, "always"],
    "arrow-spacing": [2, {"before": true, "after": true}],
    "brace-style": [2, "1tbs"],
    "comma-spacing": [2, {"before": false, "after": true}],
    "comma-style": [2, "last"],
    "computed-property-spacing": [2, "never"],
    "eol-last": 2,
    "eqeqeq": 2,
    "func-style": [2, "declaration"],
    "indent": [2, 2, {"SwitchCase": 1, "VariableDeclarator": 1}],
    "key-spacing": [2, {"beforeColon": false, "afterColon": true}],
    "linebreak-style": [2, "unix"],
    "lines-around-comment": [2, {"beforeBlockComment": true}],
    "max-len": [2, 100, 4, {"ignorePattern": "^import\\s"}],
    "new-cap": [2, {"capIsNewExceptions": ["Date.UTC"]}],
    "new-parens": 2,
    "newline-after-var": [2, "always"],
    "no-array-constructor": 2,
    "no-continue": 2,
    "no-extra-parens": 2,
    "no-lonely-if": 2,
    "no-multiple-empty-lines": [2, {"max": 1}],
    "no-new-object": 2,
    "no-restricted-syntax": [2, "WithStatement"],
    "no-spaced-func": 2,
    "no-trailing-spaces": 2,
    "no-unneeded-ternary": 2,
    "no-var": 2,
    "object-curly-spacing": [2, "never"],
    "one-var": [2, {"initialized": "never", "uninitialized": "always"}],
    "operator-linebreak": [2, "after"],
    "quote-props": [2, "as-needed", {"keywords": true}],
    "quotes": [2, "single"],
    "prefer-arrow-callback": 1,
    "semi-spacing": [2, {"before": false, "after": true}],
    "semi": 2,
    "space-after-keywords": 2,
    "space-before-blocks": 2,
    "space-before-function-paren": [2, {"anonymous": "always", "named": "never"}],
    "space-before-keywords": [2, "always"],
    "space-in-parens": [2, "never"],
    "space-infix-ops": [2, {"int32Hint": false}],
    "space-return-throw-case": 2,
    "space-unary-ops": [1, { "words": true, "nonwords": false }],
    "spaced-comment": [2, "always"],
    "valid-jsdoc": [2, {
      "prefer": {
        "arg": "param",
        "argument": "param",
        "return": "returns"
      },
      "requireParamDescription": false,
      "requireReturn": false,
      "requireReturnDescription": false
    }]
  }
}