.eslintrc

{
  "root": true,
  "parser": "babel-eslint",
  "plugins": [
    "chai-expect",
    "google-camelcase",
    "jsdoc",
    "local",
    "notice",
    "prettier",
    "react",
    "react-hooks",
    "sort-imports-es6-autofix",
    "sort-requires"
  ],
  "env": {
    "es6": true,
    "browser": true
  },
  "parserOptions": {
    "ecmaVersion": 6,
    "jsx": true,
    "sourceType": "module"
  },
  "globals": {
    "NATIVE_CUSTOM_ELEMENTS_V1": "readonly",
    "IS_ESM": "readonly",

    "AMP": "readonly",
    "context": "readonly",
    "global": "readonly"
  },
  "settings": {
    "jsdoc": {
      "tagNamePreference": {
        "augments": "extends",
        "constant": "const",
        "class": "constructor",
        "file": "fileoverview",
        "returns": "return"
      },
      "allowOverrideWithoutParam": true
    },
    "react": {
      "pragma": "Preact"
    }
  },
  "rules": {
    "chai-expect/missing-assertion": 2,
    "chai-expect/no-inner-compare": 2,
    "chai-expect/terminating-properties": 2,
    "curly": 2,
    "google-camelcase/google-camelcase": 2,
    "jsdoc/check-param-names": 2,
    "jsdoc/check-tag-names": [
      2,
      {
        "definedTags": [
          "closurePrimitive",
          "deprecated",
          "dict",
          "export",
          "final",
          "nocollapse",
          "noinline",
          "package",
          "record",
          "restricted",
          "struct",
          "suppress",
          "template",
          "visibleForTesting",
          "jsx",
          "jsxFrag"
        ]
      }
    ],
    "jsdoc/check-types": [
      2,
      {
        "noDefaults": true
      }
    ],
    "jsdoc/require-param": 2,
    "jsdoc/require-param-name": 2,
    "jsdoc/require-param-type": 2,
    "jsdoc/require-returns": 2,
    "jsdoc/require-returns-type": 2,
    "local/await-expect": 2,
    "local/closure-type-primitives": 2,
    "local/dict-string-keys": 2,
    "local/html-template": 2,
    "local/is-experiment-on": 2,
    "local/json-configuration": 2,
    "local/no-array-destructuring": 2,
    "local/no-arrow-on-register-functions": 2,
    "local/no-deep-destructuring": 2,
    "local/no-destructure-assignment-params": 2,
    "local/no-duplicate-import": 2,
    "local/no-duplicate-name-typedef": 2,
    "local/no-es2015-number-props": 2,
    "local/no-export-side-effect": 2,
    "local/no-for-of-statement": 2,
    "local/no-global": 0,
    "local/no-has-own-property-method": 2,
    "local/no-import": 2,
    "local/no-import-rename": 2,
    "local/no-is-amp-alt": 2,
    "local/no-log-array": 2,
    "local/no-mixed-interpolation": 2,
    "local/no-mixed-operators": 2,
    "local/no-module-exports": 2,
    "local/no-rest": 2,
    "local/no-spread": 2,
    "local/no-style-display": 2,
    "local/no-style-property-setting": 2,
    "local/no-swallow-return-from-allow-console-error": 2,
    "local/no-unload-listener": 2,
    "local/preact": 2,
    "local/prefer-deferred-promise": 0,
    "local/prefer-destructuring": 2,
    "local/prefer-spread-props": 2,
    "local/prefer-unnested-spread-objects": 2,
    "local/private-prop-names": 2,
    "local/query-selector": 2,
    "local/split-single-pass-comment": 2,
    "local/todo-format": 0,
    "local/unused-private-field": 2,
    "local/vsync": 0,
    "local/window-property-name": 2,
    "no-alert": 2,
    "no-cond-assign": 2,
    "no-debugger": 2,
    "no-div-regex": 2,
    "no-dupe-keys": 2,
    "no-eval": 2,
    "no-extend-native": 2,
    "no-extra-bind": 2,
    "no-implicit-coercion": [
      2,
      {
        "boolean": false
      }
    ],
    "no-implied-eval": 2,
    "no-iterator": 2,
    "no-lone-blocks": 2,
    "no-native-reassign": 2,
    "no-redeclare": 2,
    "no-restricted-globals": [2, "error", "event"],
    "no-script-url": 2,
    "no-self-compare": 2,
    "no-sequences": 2,
    "no-throw-literal": 2,
    "no-unused-expressions": 0,
    "no-unused-vars": [
      2,
      {
        "argsIgnorePattern": "^(var_args$|opt_|unused)",
        "varsIgnorePattern": "(AmpElement|Def|Interface)$"
      }
    ],
    "no-useless-call": 2,
    "no-useless-concat": 2,
    "no-undef": 2,
    "no-var": 2,
    "no-warning-comments": [
      2,
      {
        "terms": ["do not submit"],
        "location": "anywhere"
      }
    ],
    "notice/notice": [
      2,
      {
        "mustMatch": "Copyright 20\\d{2} The AMP HTML Authors\\.",
        "templateFile": "build-system/common/LICENSE-TEMPLATE.txt",
        "messages": {
          "whenFailedToMatch": "Missing or incorrect license header"
        }
      }
    ],
    "object-shorthand": [
      2,
      "properties",
      {
        "avoidQuotes": true
      }
    ],
    "prefer-const": 2,
    "prettier/prettier": 2,
    "radix": 2,
    "react/jsx-uses-react": 2,
    "react/jsx-uses-vars": 2,
    "react-hooks/rules-of-hooks": 2,
    "react-hooks/exhaustive-deps": 2,
    "require-jsdoc": [
      2,
      {
        "require": {
          "FunctionDeclaration": true,
          "MethodDefinition": true,
          "ClassDeclaration": false,
          "ArrowFunctionExpression": false,
          "FunctionExpression": false
        }
      }
    ],
    "sort-imports-es6-autofix/sort-imports-es6": [
      2,
      {
        "ignoreCase": false,
        "ignoreMemberSort": false,
        "memberSyntaxSortOrder": ["none", "all", "multiple", "single"]
      }
    ],
    "sort-requires/sort-requires": 2
  },
  "overrides": [
    {
      "files": [
        "test/**/*.js",
        "extensions/**/test/**/*.js",
        "extensions/**/test-e2e/*.js",
        "ads/**/test/**/*.js",
        "testing/**/*.js"
      ],
      "rules": {
        "require-jsdoc": 0,
        "local/no-destructure-assignment-params": 0,
        "jsdoc/check-param-names": 0,
        "jsdoc/check-tag-names": 0,
        "jsdoc/check-types": 0,
        "jsdoc/require-param": 0,
        "jsdoc/require-param-name": 0,
        "jsdoc/require-param-type": 0,
        "jsdoc/require-returns": 0,
        "jsdoc/require-returns-type": 0
      },
      "globals": {
        "it": false,
        "chai": false,
        "expect": false,
        "describe": false,
        "beforeEach": false,
        "afterEach": false,
        "before": false,
        "after": false,
        "assert": false,
        "describes": true,
        "allowConsoleError": false,
        "expectAsyncConsoleError": false,
        "restoreAsyncErrorThrows": false,
        "stubAsyncErrorThrows": false,
        "Key": false
      }
    },
    {
      "files": ["babel.config.js"],
      "globals": {
        "module": false,
        "process": false,
        "require": false
      }
    },
    {
      "files": ["**/*.extern.js"],
      "rules": {
        "no-var": 0,
        "no-undef": 0,
        "no-unused-vars": 0,
        "prefer-const": 0,
        "require-jsdoc": 0,
        "jsdoc/check-tag-names": 0,
        "local/closure-type-primitives": 0,
        "local/no-duplicate-name-typedef": 0,
        "google-camelcase/google-camelcase": 0
      }
    }
  ]
}