If youâve used the PFUser object before, this should look very familiar, except that you're making a call to PFFacebookUtils. Notice that we create a permissions array. This indicates what data we want to access once the user is logged in. The full list can be found on the Facebook developer website.
pro-1. 1  a prefix indicating favor for some party, system, idea, etc., without identity with the group (pro-British; pro-Communist; proslavery), having anti- as its opposite.
it means that pros are good things about a thing and cons are the bad things.Pros means the good things about whatever you're talking about.Cons are the bad things about whatever you're talking about.Example: Wood Pros: Cheap, lightweight Cons: Burns easily, breaks easilyI have read that pro stands for productive and con for contrary.