Consider adding typescript faq, recommended-typescript config

This is a reopening of https://github.com/mysticatea/eslint-plugin-node/issues/205.

Typescript is usually (IMHO) configured, when used with node, to translate what look like ECMA imports and exports down to CommonJS. I know that’s evolving, but only the brave and those without other dependencies are going all in. In this config, what look like ECMA imports and exports in the .ts source really aren’t.

The plugin:node/recommended-typescript-commonjs config should probably include something like:

   "rules": {
        "node/no-unsupported-features/es-syntax": [
            "error",
            {
                "ignores": [
                    "modules"
                ]
            }
        ],
        "node/no-missing-import": ["error", {
            "tryExtensions": [".js", ".ts"]
        }]
    }

It probably makes sense to also soon have another plugin:node/recommended-typescript-esm for when typescript is set up to emit ecmascript modules.

Also, it would be helpful if the doc specified whether node should come before or after typescript in extends.

[Sparticuz]

node/no-missing-import would also need to take into account import type

[barraponto]

here are a couple of commented configs for eslint and tsconfig (eslintrc.json is fine with comments):

eslintrc.json

{
  "env": {
    /* safely matches tsconfig target, even if tsc might backport/shim */
    "es2020": true,
    "node": true
  },
  "extends": [
    "eslint:recommended",
    "plugin:@typescript-eslint/recommended",
    "plugin:node/recommended",
    "plugin:import/recommended",
    "plugin:import/typescript",
    "prettier"
  ],
  "parser": "@typescript-eslint/parser",
  "parserOptions": {
    "ecmaVersion": "latest",
    "sourceType": "module"
  },
  "plugins": ["@typescript-eslint", "import", "node"],
  /* not really necessary, just safety */
  "root": true,
  "rules": {
    /* allow import/export syntax, tied to package.json engine.node values */
    "node/no-unsupported-features/es-syntax": [
      "error",
      { "ignores": ["modules"] }
    ],
    /* let the import plugin deal with module checking */
    "node/no-missing-import": "off"
  },
  "settings": {
    "import/parsers": {
      "@typescript-eslint/parser": [".ts", "tsx"]
    },
    "import/resolver": {
      "typescript": { "alwaysTryTypes": true }
    }
  }
}

tsconfig.json

{
  "extends": "@tsconfig/node14/tsconfig.json",
  "include": ["./src"],
  "compilerOptions": {
    "outDir": "./dist"
  }
}