.eslintrc

{
  "env": {
    "node": true
  },
  "extends": "eslint:recommended",
  "rules": {
    "brace-style": [2, "1tbs", { allowSingleLine: true }],
    "camelcase": [2, { properties: "never" }],
    "comma-dangle": [ 2, "never" ],
    "comma-spacing": [2, { "before": false, "after": true }],
    "consistent-return": 2,
    "curly": [2, "multi-line"],
    "default-case": 2,
    "eol-last": 2,
    "eqeqeq": 2,
    "indent": [2, 2, { "SwitchCase": 1 }],
    "keyword-spacing": [2, {
      "before": true,
      "after": true,
      "overrides": {
        "return": { "after": true },
        "throw": { "after": true },
        "case": { "after": true }
      }
    }],
    "new-cap": [2, { "newIsCap": true }],
    "no-case-declarations": 2,
    "no-alert": 1,
    "no-console": 1,
    "no-debugger": 1,
    "no-else-return": 2,
    "no-extra-semi": 2,
    "no-fallthrough": 2,
    "no-lonely-if": 2,
    "no-mixed-operators": [2, {
      groups: [
        ["+", "-", "*", "/", "%", "**"],
        ["&", "|", "^", "~", "<<", ">>", ">>>"],
        ["==", "!=", "===", "!==", ">", ">=", "<", "<="],
        ["&&", "||"],
        ["in", "instanceof"]
      ],
      allowSamePrecedence: false
    }],
    "no-mixed-spaces-and-tabs": 2,
    "no-multiple-empty-lines": [2, { "max": 2, "maxEOF": 1 }],
    "no-nested-ternary": 2,
    "no-param-reassign": [2, { "props": false }],
    "no-return-assign": 2,
    "no-shadow": 2,
    "no-trailing-spaces": 2,
    "no-undef": 2,
    "no-unused-vars": 2,
    "no-use-before-define": 2,
    "object-curly-spacing": [2, "always"],
    "one-var": [2, "never"],
    "quote-props": [2, "as-needed", { "keywords": false, "unnecessary": true, "numbers": false }],
    "quotes": [2, "single"],
    "semi": 2,
    "semi-spacing": 2,
    "space-before-function-paren": [2, { anonymous: "never", named: "never" }],
    "space-infix-ops": 2,
    "space-in-parens": 2,
    "spaced-comment": [2, "always"],
    "strict": 2
  }
}