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GetTradeSkillSelectionIndex -Documentation by Xharze-

Returns the number of trainer services.

GetNumTrainerServices();

Arguments
none

Returns
Number trainerServices. Note that if you are working with an invalid target (for example, a merchant) 148 will be consistently returned instead of 0.
trainerServices 
Total number of trainer services (used like index).

Example

Prints the number of trainer services to the chatwindow

ChatFrame1:AddMessage(GetNumTrainerServices());



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