Singleton map object(static map object)

Question
1

Hi,

    i want to create singleton map object to store keys and values, but it is not working as static, as i go on add the  key value pair it is not increasing map size , it is still one
2

Default map is immutable.

3

What you describe would look something like this

object GlobalMutableState {
  val keysandvalues: scala.collection.mutable.Map[Any, Any]  = scala.collection.mutable.Map.empty
}

As a word of warning, having global mutable state is a red flag, as is having untyped values (Any). This is firing all alarm bells. It may be good to consider a different solution strategy.

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