Add this suggestion to a batch that can be applied as a single commit.
This suggestion is invalid because no changes were made to the code.
Suggestions cannot be applied while the pull request is closed.
Suggestions cannot be applied while viewing a subset of changes.
Only one suggestion per line can be applied in a batch.
Add this suggestion to a batch that can be applied as a single commit.
Applying suggestions on deleted lines is not supported.
You must change the existing code in this line in order to create a valid suggestion.
Outdated suggestions cannot be applied.
This suggestion has been applied or marked resolved.
Suggestions cannot be applied from pending reviews.
Suggestions cannot be applied on multi-line comments.
Suggestions cannot be applied while the pull request is queued to merge.
Suggestion cannot be applied right now. Please check back later.
Use of
flatMap
:The flatMap function is used to transform each AddressComponent into pairs of type and the component itself. This flattens the structure into a single list of pairs, making it easier to group by type.
Use of
groupBy
:The groupBy function is then applied to this list of pairs. It takes a selector for the key (the type) and a selector for the value (the AddressComponent). This eliminates the need for manual initialization and population of the map.
Immutable Map:
The result is an immutable Map<String, List>, which is generally preferred in Kotlin for better safety and clarity.
Before submitting your PR, there are a few things you can do to make sure it goes smoothly: