mapNullable
Creates a new Inspector from a non-nullable parent inspector that either contains the original value or null if its value matches the given placeholder.
When updating the value of the resulting Store to null, the placeholder is used instead. When the resulting Inspector's value would be the placeholder, null will be used instead.
Parameters
placeholder
value to be mapped to null
Creates a new Store from a non-nullable parent store that either contains the original value or null if its value matches the given placeholder.
When updating the value of the resulting Store to null, the placeholder is used instead. When the resulting Store's value would be the placeholder, null will be used instead.
Parameters
placeholder
value to be mapped to null