How to merge two dictionaries?

Question

Swift

Merge the two dictionaries into one called tables. If both dictionaries have the same key, sum the values. !!!Use only dictionaries and arrays
let table1 = ["box":3, "lamp":1, "pen":2]
let table2 = ["box":2, "PC":1, "pen": 3]

Answer 1

text

let table1 = ["box": 3, "lamp": 1, "pen": 2]
let table2 = ["box": 2, "PC": 1, "pen": 3]

let table = table1.merging(table2) { $0 + $1 }

// ["pen": 5, "lamp": 1, "PC": 1, "box": 5]