Function compose3

compose3<R3>(fallback): (<T, R1, R2>(fns) => ((x) => R3))
Compose an array of exactly 3 functions from bottom to top (right to left).

Returns the fallback if x is null or undefined.
Type Parameters
- R3
Parameters
- fallback: R3
Returns (<T, R1, R2>(fns) => ((x) => R3))
- - <T, R1, R2>(fns): ((x) => R3)
  - Type Parameters
    - T
    - R1
    - R2
    Parameters
    - fns: [Unary<R2, R3>, Unary<R1, R2>, Unary<T, R1>]
    Returns ((x) => R3)
    - - (x): R3
      - Parameters
        
        x: T
        
        Returns R3
See
compose2, compose4

Example
```
compose3(['fallback'])([z => [z, z], y => y.toString(), x => x / 2])(42)
// => ["21", "21"]

compose3(['fallback'])([z => [z, z], y => y.toString(), x => x / 2])(null)
// => ["fallback"]
```
- Defined in lib/fns/compose.ts:48

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