invite all friends to facebook event or page

First, it was too simple to select all your friends at once by using browser plug-ins or using JavaScript codes. Getting likes on the Facebook page was a lot simpler before Facebook removed check box selection for page invitations. Earlier, it was too easy to select all your friends at once by making one click.
How to Invite all friends to Facebook event in one click
Now, each invitation is needed to be sent separately by clicking 'Invite' to make