Function when

when<T>(predicate): (<R>(fn) => ((x) => T | R))
Returns the result of fn(x) when the predicate is true, or x when the predicate is false.
Type Parameters
- T
Parameters
- predicate: Predicate<T>
Returns (<R>(fn) => ((x) => T | R))
- - <R>(fn): ((x) => T | R)
  - Type Parameters
    - R
    Parameters
    - fn: Unary<T, R>
    Returns ((x) => T | R)
    - - (x): T | R
      - Parameters
        
        x: T
        
        Returns T | R
Example
```
when(isOdd)(add(2))(3)
// => 5

when(isOdd)(add(2))(4)
// => 4
```
- Defined in lib/fns/logic.ts:183

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