npm init -y
mkdir src
touch src/index.ts

npm install typescript --save-dev

npm install @types/node --save-dev

npx tsc --init --rootDir src --outDir build \
--esModuleInterop --resolveJsonModule --lib es6 \
--module commonjs --allowJs true --noImplicitAny true

    "build": "tsc",
    "start": "npm run build && node build",

npm install --save-dev eslint @typescript-eslint/parser @typescript-eslint/eslint-plugin

touch .eslintrc

{
  "root": true,
  "parser": "@typescript-eslint/parser",
  "plugins": [
    "@typescript-eslint"
  ],
  "extends": [
    "eslint:recommended",
    "plugin:@typescript-eslint/eslint-recommended",
    "plugin:@typescript-eslint/recommended"
  ]
}

touch .eslintignore

node_modules
dist

{
  "scripts": {
    ...
    "lint": "eslint . --ext .ts",
  }
}

npm install --save-dev prettier

touch .prettierrc

{
  "trailingComma": "all",
  "bracketSpacing": true
}

  "format": "prettier --config .prettierrc 'src/**/*.ts' --write"

touch .vscode/settings.json

{
  "editor.formatOnPaste": true,
  "editor.formatOnSave": true
}

npm install --save-dev eslint-config-prettier eslint-plugin-prettier

{
  "root": true,
  "parser": "@typescript-eslint/parser",
  "plugins": [
    "@typescript-eslint",
    "prettier"  ],
  "extends": [
    "eslint:recommended",
    "plugin:@typescript-eslint/eslint-recommended",
    "plugin:@typescript-eslint/recommended",
    "prettier"  ],
  "rules": {
    "no-console": 1,       // Means warning
    "prettier/prettier": 2 // Means error  }
}