Is there a way to not have to say !! here?

# getting-started

[bjonnh]

Is there a way to not have to say !! here?

[Shawn]

the easy answer is map1[it.key] = map1.getValue(it.key) + it.value

[Shawn]

but you’ll still be able to make this more concise

[bjonnh]

oh I could do a getValue with a default of 0.0 as well

[Shawn]

for ((key, value) in map2) {
  this[key] = getOrDefault(key) { 0 } + value
}

[bjonnh]

also I realized that my map1=this is a mistake as I don't want to touch the original object