How to select all friends for event invites on Facebook

This method worked for me on Chrome / Mac OS, should work on other browsers too:
Instructions:
1. Click Invite Friends on whatever you are inviting people to
2. Make sure All Friends is selected on the left!
3. Scroll ALL the way down until names stop loading (I found it easy to click the first name and then hold down the spacebar or Page Down button)
4. For EVENTS Copy this code:
javascript:var inputs = document.getElementsByClassName('_1v30');
for(var i=0; i<inputs.length;i++) {
inputs[i].click();
console.log(inputs[i].name + " was clicked");
}

5. Paste the code into the URL bar of your browser (where you type website addresses), but WAIT! Check the beginning of the URL bar and make sure the word "javascript:" is there, if it is not, TYPE IT IN! A lot of browsers automatically delete the "javascript:" portion for security purposes. Press enter.
6. For large friends list, this may utilise all your resources and will cause the page to freeze and be unresponsive. Just wait a few minutes until all the names get selected. Click "Wait" instead of terminating the page.

However... as you can see FB wasn't liking this:

Now I get this cute bird thing: