.eslintrc.json

{
  "extends": [
      "airbnb-base",
      "airbnb-typescript/base"
    ],
  "plugins": ["@typescript-eslint"],
  "parser": "@typescript-eslint/parser",
  "rules": {
    "@typescript-eslint/indent": ["error", 4],
    "semi": ["error", "always"],
    "import/extensions": 0,
    "max-len": "off",
    "no-param-reassign": ["error", { "props": false }]
  },
  "overrides": [
      {
          "files": [
              "test/**/*.ts",
              "evaluation/**/*"
          ],
          "env": { "mocha": true },
          "rules": {
            "@typescript-eslint/no-unused-expressions": "off",
            "no-await-in-loop": "off"
          }
      },
      {
        "files": ["*.ts", "*.tsx"], // Your TypeScript files extension
        "parserOptions": {
          "project": ["./tsconfig.json"] // Specify it only for TypeScript files
        }
      }
  ],
  "settings": {
    "import/resolver": {
      "node": {
        "extensions": [".ts", ".tsx"]
      }
    }
  },
  "parserOptions": {
      "project": "./tsconfig.json"
  }
}