.eslintrc.json

/**
 * Loads https://github.com/typhonjs-node-config/typhonjs-config-eslint/blob/master/3.0/basic/es8/server/node/.eslintrc
 * Loads https://github.com/typhonjs-fvtt/eslint-config-foundry.js/blob/main/0.8.0.js
 *
 * NPM: https://www.npmjs.com/package/typhonjs-config-eslint
 * NPM: https://www.npmjs.com/package/@typhonjs-fvtt/eslint-config-foundry.js
 */
 {
    // ESLint configs are prone to particular choices, so if the first config below doesn't work for you then replace
    // with one that you do prefer. The second config defines globals defined in `foundry.js` for use w/ `no-shadow`.
    "extends": [
      "eslint:recommended",
      "@typhonjs-fvtt/eslint-config-foundry.js/0.8.0",
      "plugin:jest/recommended",
      "plugin:prettier/recommended",
      "plugin:jsdoc/recommended",
      "plugin:jsdoc/recommended-typescript-flavor"
    ],
    "plugins": ["jest", "jsdoc"],
    "parserOptions": {
      "ecmaVersion": 2020,
      "extraFileExtensions": [".cjs", ".mjs"],
      "sourceType": "module"
    },

    // Defines / overrides a few more environment parameters not provided in the configs above.
    "env": {
      "browser": true,
      "es6": true
    },

    // Prevents overwriting any built in globals particularly from `@typhonjs-fvtt/eslint-config-foundry.js`, but also
    // node & browser environments. `event / window.event` shadowing is allowed due to being a common variable name and
    // an uncommonly used browser feature.
    //
    // Note: if you are using Typescript you must use `@typescript-eslint/no-shadow`
    "rules": {
      "no-shadow": ["error", { "builtinGlobals": true, "hoist": "all", "allow": ["event"] }],
      "brace-style": ["error", "1tbs"],
      "require-jsdoc": "off",
      "quotes": ["error", "double", { "avoidEscape": true }]
    },

    "overrides": [
      {
        "files": ["./*.js", "./*.cjs", "./*.mjs"],
        "env": {
          "node": true
        }
      },
      {
        "files": ["./test/**/*.js"],
        "env": {
          "jest/globals": true
        }
      }
    ]
  }