API IsSpellClassOrSpec

Returns whether a given spell is specific to a specialization and/or class. spec, class = IsSpellClassOrSpec("spellName" or spellIndex, "bookType")

Arguments
or
 * spellname : String - name of the spell currently known by the player.
 * spellIndex : Number - spell book slot index, ascending from 1.
 * bookType : String - spell book type, e.g. BOOKTYPE_SPELL ("spell") for player's spell book.

Returns

 * spec : String - name of the specialization the spell is exclusive to, nil if not a specialization-granted spell.
 * class :String - name of the class the spell is exclusive to, nil if not a class ability.