codelintandformat.js

install vscode extentions:
  eslint
  prettier - code formatter

type this in console to install npm dependensies:
  npm install eslint
  npm install -g install-peerdeps
  install-peerdeps --dev eslint-config-airbnb

F1 in vscode then type "eslint" and choose "create .eslintrc.json file"
find .eslintrc.json file and add key {"extends": "airbnb"} so your eslintrc json file should look like this:
{
  "parserOptions": blabla,
  "anotherKeys": blabla,
  "extends": "airbnb"
}

then go to vscode user settings and find "editor.formatOnSave" setting and make it true

Done you have clean code after you save your file. Good job!

add comments to parts that aren't Javascript
It is confusing without them