How to find into mongodb to the last item of an array?

Question

I want to find documents where last elements in an array equals to some value. Array elements may be accessed by specific array position:

// i.e. comments[0]         


        

Answer 1

I'm just doing :

db.products.find({'statusHistory.status':'AVAILABLE'},{'statusHistory': {$slice: -1}})

This gets me products for which the last statusHistory item in the array, contains the property status='AVAILABLE' .