cannot subscript a value of type 'inout' [String :Double] (aka inout Dictionary)

Question

How can if i try to add three menus in the dictionary i wont let me and throws an error when i try to force unwrap the 3rd item in the menu. However if i force unwrap two of

Answer 1

You can alway iterate through and add to total, much simpler that a line of long addition.

var totalCost: Double = 0
for each in menu {
    totalCost += each.value
}
print(totalCost)