A barebones TypeScript Node.js project

.editorconfig

root = true

[*]
indent_style = space
indent_size = 2
charset = utf-8
trim_trailing_whitespace = true
insert_final_newline = true

.eslintrc

{
  "parser": "@typescript-eslint/parser",
  "plugins": [
    "@typescript-eslint",
    "prettier"
  ],
  "extends": [
    "eslint:recommended",
    "plugin:@typescript-eslint/eslint-recommended",
    "plugin:@typescript-eslint/recommended",
    "prettier"
  ],
  "rules": {
    "prettier/prettier": "error"
  }
}

.prettierrc

{
  "printWidth": 120,
  "semi": true,
  "singleQuote": true,
  "trailingComma": "all"
}

index.ts

// Once everything's set up, this should auto-format on save, provided VS Code is configured properly:
// https://github.com/microsoft/vscode-eslint#:~:text=The%20setting%20below%20turns%20on%20Auto%20Fix
import {hostname} from 'node:os'
var a: Array<number> = [
  1,
  2,
  3,
]
let b : string[]= [
  'a long',
  'long long',
  'long long long',
  'long long long long',
  'long long long long long array to keep on separate lines'
]
console.log( `hola ${ hostname() }` , a , b )

package.json

{
  "name": "typescript-project-template",
  "version": "1.0.0",
  "author": "Chris Antes",
  "license": "MIT",
  "description": "A barebones TS project",
  "private": true,
  "type": "module",
  "scripts": {
    "start": "ts-node-esm index.ts",
    "lint": "eslint src"
  },
  "devDependencies": {
    "@tsconfig/next-strictest": "^1.0.0",
    "@types/node": "^18.11.9",
    "@typescript-eslint/eslint-plugin": "^5.42.1",
    "@typescript-eslint/parser": "^5.42.1",
    "eslint": "^8.27.0",
    "eslint-config-prettier": "^8.5.0",
    "eslint-plugin-prettier": "^4.2.1",
    "prettier": "^2.7.1",
    "ts-node": "^10.9.1",
    "typescript": "^4.8.4"
  }
}

tsconfig.json

{
  "extends": "@tsconfig/next-strictest/tsconfig.json",
  "compilerOptions": {
    "target": "ESNext",
    "types": ["node"]
  }
}