Quit a Mac application from a JavaScript for Automation (JXA) script

Question

The AppleScript way to quit a Mac application is:

tell application "iTunes"
  quit
end tell

How do you quit an app with JavaScript for Automation (JXA) ?

Answer 1

Quitting an application with JavaScript for Automation is done like this:

var itunes = Application('iTunes');
itunes.quit();

(Note that the Application call looks inside the /Applications directory. Any app there can be called by name.)