.eslintrc.json

// https://eslint.org/docs/latest/user-guide/configuring/configuration-files
{
  "extends": [
    "airbnb-base/legacy",
    "plugin:mocha/recommended",
    "plugin:svelte/recommended"
  ],
  "parserOptions": {
    "ecmaVersion": 2019,
    "sourceType": "module"
  },
  "env": {
    "browser": true
  },
  "plugins": [
    "svelte",
    "mocha"
  ],
  "overrides": [
    {
      "files": ["*"],
      "globals": {
        "L": true, // leaflet library
        "Nominatim_Config": true
      },
      "rules": {
        "camelcase": "off", // my_var is fine, no need for myVar
        "func-names": "off", // anonymous "function()" is fine
        "vars-on-top": "off",
        "new-cap": "off", // constructor name can start lowercase (as Leaflet does)
        "no-multiple-empty-lines": "off",
        "no-use-before-define": ["error", { "functions": false }],
        "padded-blocks": "off",
        "no-param-reassign": "off",
        "max-len": [
          "error",
          100,
          2,
          {
            "ignoreUrls": true
          }
        ]
      }
    },
    {
      "files": ["test/**"],
      "globals": {
        "browser": true
      }
    }
  ]
}