How do I remove empty pages on MacBook Air Launchpad?

If you've deleted several apps from Launchpad, leaving an empty page, it should eventually disappear automatically when you restart your Mac or log out and back in. However, if it doesn't, you can try these methods:

• Simply restart your Mac and it could force Launchpad to refresh and remove empty pages.
• You can reset the Launchpad layout by using the following command in the Terminal app:
  • defaults write com.apple.dock ResetLaunchPad -bool true; killall Dock