# join<R> abstract method

R
join<R>(

- R mapFirst(
- First

- R mapSecond(
- Second

- R mapThird(
- Third

- R mapFourth(
- Fourth

- R mapFifth(
- Fifth

- R mapSixth(
- Sixth

- R mapSeventh(
- Seventh

- R mapEighth(
- Eighth

## Implementation

```
R join<R>(
R Function(First) mapFirst,
R Function(Second) mapSecond,
R Function(Third) mapThird,
R Function(Fourth) mapFourth,
R Function(Fifth) mapFifth,
R Function(Sixth) mapSixth,
R Function(Seventh) mapSeventh,
R Function(Eighth) mapEighth,
);
```