API:GetClassInfoByID

GetClassInfoByID(x)

Arguments

 * x -
 * Number

Returns

 * 1 - Warrior, WARRIOR
 * 2 - Scout, RANGER
 * 3 - Rogue, THIEF
 * 4 - Mage, MAGE
 * 5 - Priest, AUGUR
 * 6 - Knight, KNIGHT
 * 7 - Warden, WARDEN
 * 8 - Druid, DRUID
 * 9 - Champion, PSYRON
 * 10 - Warlock, HARPSYN

The second return value is identical to class tokens

Example
/script DEFAULT_CHAT_FRAME:AddMessage(GetClassInfoByID(1));

Prints Warrior.