API GetMerchantItemCostInfo

itemCount = GetMerchantItemCostInfo(index);

Arguments

 * index: Number - The index of the item in the merchant's inventory

Returns

 * itemCount: Number - The number of different types of items required to purchase the item.

Details
The itemCount is the number of different types of items required, not how many of those types. For example, the Scout's Tabard which requires 3 Arathi Basin Marks of Honor and 3 Warsong Gulch Marks of Honor would return a 2 for the item count. To find out how many of each item is required, use the GetMerchantItemCostItem function.