R How do I extract first row of each matrix within a list?

Question

Say I have a list called mylist_1 with 2 matrices:

mylist_1

$region_1           
users   50  20  30
revenue 10000   3500    4000

$red            
users   2         


        

Answer 1

Or,

lapply(mylist_1, `[`,1,)
lapply(mylist_1, `[`,2,)