.eslintrc.json

{
  "root": true,
  "rules": {
    "indent": "off",
    "no-unused-vars": "off",
    "semi": [2, "always"],
    "keyword-spacing": [2, { "before": true, "after": true }],
    "space-before-blocks": [2, "always"],
    "no-mixed-spaces-and-tabs": [2, "smart-tabs"],
    "no-cond-assign": 0,
    "object-shorthand": [2, "always"],
    "no-const-assign": 2,
    "no-class-assign": 2,
    "no-this-before-super": 2,
    "no-var": 2,
    "no-unreachable": 2,
    "valid-typeof": 2,
    "quote-props": [2, "as-needed"],
    "one-var": [2, "never"],
    "prefer-arrow-callback": 2,
    "prefer-const": [2, { "destructuring": "all" }],
    "arrow-spacing": 2,
    "no-inner-declarations": 0,
    "@typescript-eslint/indent": ["error", "tab", {
      "SwitchCase": 1,
      "ignoredNodes": ["TemplateLiteral"]
    }],
    "@typescript-eslint/camelcase": "off",
    "@typescript-eslint/no-use-before-define": "off",
    "@typescript-eslint/array-type": ["error", "array-simple"],
    "@typescript-eslint/explicit-function-return-type": "off",
    "@typescript-eslint/no-explicit-any": "off",
    "@typescript-eslint/explicit-member-accessibility": "off",
    "@typescript-eslint/no-unused-vars": ["error", {
      "argsIgnorePattern": "^_"
    }],
    "@typescript-eslint/no-object-literal-type-assertion": ["error", {
      "allowAsParameter": true
    }],
    "@typescript-eslint/no-unused-vars": "off"
  },
  "env": {
    "es6": true,
    "browser": true,
    "node": true,
    "mocha": true
  },
  "extends": [
    "eslint:recommended",
    "plugin:import/errors",
    "plugin:import/warnings",
    "plugin:import/typescript",
    "plugin:@typescript-eslint/recommended"
  ],
  "parserOptions": {
    "ecmaVersion": 9,
    "sourceType": "module"
  },
  "settings": {
    "import/core-modules": [
      "svelte",
      "svelte/internal",
      "svelte/store",
      "svelte/easing",
      "estree"
    ]
  },
  "overrides": [
    {
      "files": ["*.js"],
      "rules": {
        "@typescript-eslint/no-var-requires": "off"
      }
    }
  ]
}