.eslintrc

{
  "env": {
    "browser": true,
    "node": true,
    "es6": true,
    "jquery": true,
    "amd": true,
    "commonjs": true
  },
  "extends": "eslint:recommended",
  "globals": {
    "jQuery": true,
    "$": true
  },
  "plugins": [],
  "parserOptions": {
    "sourceType": "module",
    "ecmaVersion": 2020,
    "ecmaFeatures": {
      "modules": true,
      "arrowFunctions": true,
      "jsx": true
    }
  },
  "rules": {
    "array-bracket-spacing": [
      "error",
      "always", {
        "objectsInArrays": false,
        "singleValue": false
      }
    ],
    "block-scoped-var": "error",
    "block-spacing": "error",
    "brace-style": "error",
    "camelcase": "off",
    "class-methods-use-this": "error",
    "comma-dangle": [
      "error",
      "never"
    ],
    "comma-spacing": [
      "error", {
        "before": false,
        "after": true
      }
    ],
    "comma-style": [
      "error",
      "last"
    ],
    "guard-for-in": "error",
    "indent": [
      "error",
      2, {
        "SwitchCase": 1,
        "VariableDeclarator": {
          "var": 2,
          "let": 2,
          "const": 3
        },
        "ArrayExpression": 1,
        "ObjectExpression": 1
      }
    ],
    "key-spacing": [
      "error", {
        "beforeColon": false,
        "afterColon": true,
        "mode": "strict"
      }
    ],
    "keyword-spacing": [
      "error", {
        "before": true,
        "after": true
      }
    ],
    "lines-around-directive": [
      "error", {
        "before": "always",
        "after": "never"
      }
    ],
    "newline-after-var": [
      "error", "always"
    ],
    "no-console": "warn",
    "no-div-regex": "error",
    "no-else-return": "error",
    "no-empty": [
      "error", {
        "allowEmptyCatch": true
      }
    ],
    "no-empty-function": "error",
    "no-eq-null": "warn",
    "no-extra-bind": "error",
    "no-extra-label": "error",
    "no-implicit-globals": "error",
    "no-labels": [
      "error", {
        "allowLoop": true,
        "allowSwitch": true
      }
    ],
    "no-lone-blocks": "error",
    "no-lonely-if": "error",
    "no-loop-func": "error",
    "no-mixed-spaces-and-tabs": [
      "error",
      "smart-tabs"
    ],
    "no-multiple-empty-lines": [
      "error",
      {
        "max": 2,
        "maxEOF": 1,
        "maxBOF": 1
      }
    ],
    "no-multi-spaces": "error",
    "no-new": "error",
    "no-new-func": "error",
    "no-new-object": "error",
    "no-trailing-spaces": [
      "error", {
        "skipBlankLines": true
      }
    ],
    "no-return-assign": 2,
    "no-self-compare": "error",
    "no-undef": 0,
    "no-unneeded-ternary": "error",
    "no-unused-vars": 0,
    "no-useless-concat": "error",
    "no-useless-escape": "warn",
    "no-whitespace-before-property": "error",
    "nonblock-statement-body-position": [
      "error",
      "below"
    ],
    "one-var": [
      "error", {
        "var": "never",
        "let": "never",
        "const": "never"
      }
    ],
    "one-var-declaration-per-line": [
      "error",
      "always"
    ],
    "operator-linebreak": [
      "error",
      "after", {
        "overrides": {
          "+=": "before",
          "?": "ignore",
          ":": "ignore"
        }
      }
    ],
    "quotes": [
      "error",
      "single", {
        "avoidEscape": true
      }
    ],
    "quote-props": [
      "error",
      "as-needed", {
        "keywords": true,
        "unnecessary": false
      }
    ],
    "semi": [
      "error",
      "always"
    ],
    "semi-spacing": [
      "error", {
        "after": true,
        "before": false
      }
    ],
    "space-before-blocks": [
      "error",
      "always"
    ],
    "space-before-function-paren": [
      "error",
      "never"
    ],
    "space-in-parens": [
      "error",
      "never"
    ],
    "space-infix-ops": "error",
    "space-unary-ops": [
      "error", {
        "nonwords": false,
        "overrides": {
          "++": false,
          "new": false
        },
        "words": true
      }
    ],
    "spaced-comment": [
      "error",
      "always", {
        "line": {
          "markers": ["/"]
        },
        "block": {
          "exceptions": ["/"],
          "balanced": true
        }
    }],
    "wrap-regex": "error"
  }
}