WoW API: CanSummonFriend

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CanSummonFriend("unit")

Arguments

("unit")

unit

UnitId or a name, returns true if you can summon the target or nil if not

Returns

Nothing

Example

local t = "Zuotheshaman"; 
if CanSummonFriend(t) then 
  SendChatMessage("I am summoning you!","WHISPER",nil,t) 
  SummonFriend(t) 
end 

Result

If you can summon the target, you whisper and summon him/her to you. Check out SummonFriend() for details about that function.