Fetch Craft Commerce purchasable element type

Question

How should I retrieve a purchasable element criteria in Craft Commerce ?

To get entries, I just do

craft()->elements->getCriteria(ElementType::Entry);

I have tried the following without any success to get purchasables

craft()->elements->getCriteria(ElementType::Purchasable);
craft()->elements->getCriteria(ElementType::Purchasables);
craft()->elements->getCriteria(ElementType::Product);

Answer 1

By default, Commerce only provides 3 custom element types to Craft... products, orders and variants.

My guess is you're looking for products, in which case the syntax you're looking for is:

$productsCriteria = craft()->elements->getCriteria('Commerce_Product');