Sum object values

 // Write a function that takes an object (a) as argument

// Return the sum of all object values

function myFunction( a ) {

return 

}

myFunction({a:1,b:2,c:3})

Expected

6

myFunction({j:9,i:2,x:3,z:4})

Expected

18

myFunction({w:15,x:22,y:13})

Expected

50