Function predicateComparator

predicateComparator<U>(predicate: ((value: unknown) => value is U), trueFirst?: boolean): (<T>(comparator: Comparator<T>) => Comparator<U | T>)
Compares values first using a Predicate, and if both values don't match the Predicate it will fall back to a Comparator.

Example
```
predicateComparator(isNull)(numberComparator)(0, null) => 1
predicateComparator(isNull)(numberComparator)(null, -1) => -1
predicateComparator(isNull)(numberComparator)(null, null) => 0
```
Returns
a Comparator
Type Parameters
- U
  
  the Predicate value type
Parameters
- predicate: ((value: unknown) => value is U)
  - - (value: unknown): value is U
    - Parameters
      
      value: unknown
      
      Returns value is U
- trueFirst: boolean = true
Returns (<T>(comparator: Comparator<T>) => Comparator<U | T>)
- - <T>(comparator: Comparator<T>): Comparator<U | T>
  - Type Parameters
    - T
    Parameters
    - comparator: Comparator<T>
    Returns Comparator<U | T>
- Defined in packages/comparator/src/predicateComparator.ts:19

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