flatMapLeft<L2> abstract method

Either<L2, R> flatMapLeft<L2>(
  1. Map1<L, Either<L2, R>> leftFunction
)

Returns a new Either from the either-returning transformation leftFunction, otherwise returns the wrapped right value.

Implementation

Either<L2, R> flatMapLeft<L2>(
  Map1<L, Either<L2, R>> leftFunction,
);