Magento Difference between checkout cart and checkout session

Question

Can anyone state what is the difference between

Mage::getSingleton('checkout/session');

and

Mage::getSingleton('checkout/cart');

Answer 1

1. Mage::getSingleton('checkout/cart') is Shopping cart model class.It's create Varien_Object. Mage::getSingleton('checkout/session') is session class with 'checkout' namespace. This stores information related to the quote, guest or not (cart totals, items, checkout progress)

2. Mage::getSingleton('checkout/cart') class depends on Mage::getSingleton('checkout/session') when adding/updating/deleting product.