.eslintrc.json

{
  "root": true,
  "env": {
    "browser": true,
    "es2021": true,
    "node": true
  },
  "extends": [
    "eslint:recommended",
    "plugin:@typescript-eslint/recommended",
    "plugin:svelte/recommended",
    "plugin:promise/recommended",
    "plugin:prettier/recommended"
  ],
  "parser": "@typescript-eslint/parser",
  "plugins": ["@typescript-eslint"],
  "parserOptions": {
    "sourceType": "module",
    "ecmaVersion": "latest",
    "extraFileExtensions": [".svelte"]
  },
  "overrides": [
    {
      "files": ["*.svelte"],
      "parser": "svelte-eslint-parser",
      "parserOptions": {
        "parser": "@typescript-eslint/parser"
      }
    }
  ],
  "rules": {
    "prefer-template": "warn",
    "@typescript-eslint/ban-ts-comment": "warn",
    "@typescript-eslint/no-unused-vars": ["warn", { "varsIgnorePattern": "key" }]
  }
}