withDefault

Common
JVM
JS
Native
1.0
fun < K , V > Map < K , V > . withDefault (
defaultValue : ( key : K ) -> V
) : Map < K , V >

(source)

Returns a wrapper of this read-only map, having the implicit default value provided with the specified function defaultValue .

This implicit default value is used when the original map doesn't contain a value for the key specified and a value is obtained with Map.getValue function, for example when properties are delegated to the map.

When this map already has an implicit default value provided with a former call to withDefault , it is being replaced by this call.

Common
JVM
JS
Native
1.0
@JvmName ( "withDefaultMutable" ) fun < K , V > MutableMap < K , V > . withDefault (
defaultValue : ( key : K ) -> V
) : MutableMap < K , V >

(source)

Returns a wrapper of this mutable map, having the implicit default value provided with the specified function defaultValue .

This implicit default value is used when the original map doesn't contain a value for the key specified and a value is obtained with Map.getValue function, for example when properties are delegated to the map.

When this map already has an implicit default value provided with a former call to withDefault , it is being replaced by this call.