JXA: Programmatically open a new iTerm tab with a specified command

openTermCommand.js

#!/usr/bin/osascript -l JavaScript

// Open a new iTerm tab with a specified command.
// Usage example: ./openTermCommand.js '/usr/local/bin/vim /tmp/test.txt'

function run(argv) {
  const iTerm = Application('iTerm')
  iTerm.includeStandardAdditions = true
  iTerm.activate()

  const command = argv[0]

  let win = iTerm.currentWindow()
  if (win == null) {
    win = iTerm.createWindowWithDefaultProfile({ command })
  } else {
    win.createTabWithDefaultProfile({ command })
  }
}