This code exports two functions, `createNamedReducer` and `NamedReducer`, and imports...
This code exports two functions, createNamedReducer
and NamedReducer
, and imports a type Reducer
from the 'redux' package.
The createNamedReducer
function takes two generic arguments: Name
which extends the string
type and ReduxReducer
which extends the Reducer
type. It accepts two arguments: name
of type Name
and reducer
of type ReduxReducer
. This function creates an object with two properties: name
and reducer
that correspond to the arguments passed in. It then returns this object.
The NamedReducer
type is also defined as a generic with two optional parameters: Name
which defaults to "reducerName" and ReduxReducer
which defaults to Reducer
. This type is declared using the ReturnType
utility type, which takes a function type as its argument and returns the return type of that function. In this case, it uses typeof createNamedReducer
to get the function type of createNamedReducer
, with the Name
and ReduxReducer
types provided as its generics. The resulting type is the return type of createNamedReducer
, or an object with name
of type Name
and reducer
of type ReduxReducer
.