eslint.config.mjs

import stylisticJs from "@stylistic/eslint-plugin-js"
import stylisticTs from "@stylistic/eslint-plugin-ts"
import typescriptPlugin from "@typescript-eslint/eslint-plugin"
import parser from "@typescript-eslint/parser"

export default [
  {
    languageOptions: {
      parser,
      parserOptions: {
        ecmaVersion: 2022,
        project: "./tsconfig.json",
      },
    },
    files: ["**/*.ts"],
    plugins: {
      "@typescript-eslint": typescriptPlugin,
      "@stylistic/js": stylisticJs,
      "@stylistic/ts": stylisticTs,
    },
    settings: {
      "import/resolver": {
        node: {
          extensions: [
            ".js",
            ".jsx",
            ".ts",
            ".tsx",
          ],
        },
      },
    },
    rules: {
      "arrow-body-style": ["error", "as-needed"],
      "prefer-destructuring": [
        "error",
        {
          array: true,
          object: true,
        },
        {},
      ],
      "prefer-template": "error",
      "no-useless-concat": "error",
      "@stylistic/js/quotes": ["error", "double"],
      "consistent-return": "off",
      "no-param-reassign": [
        "error",
        {
          props: true,
          ignorePropertyModificationsForRegex: [".*"],
        },
      ],
      "@stylistic/js/lines-between-class-members": ["error", "always"],
      "@stylistic/js/padding-line-between-statements": [
        "error",
        {
          blankLine: "always",
          prev: [
            "export",
            "class",
            "default",
            "function",
          ],
          next: [
            "export",
            "class",
            "default",
            "function",
          ],
        },
      ],
      // Linebreaks
      "no-underscore-dangle": [
        "error",
        {
          allowAfterThis: true,
          allow: ["_id"],
        },
      ],
    },
  },
]