Function minmax

minmax<T>(object: Iterable<T>, fn: ((first: T, second: T) => number)): [T, T] | undefined
Find the minimum and maximum values in an iterable.

Returns
A 2-tuple of the [min, max] values in the iterable. If multiple values are equivalent, the left-most values are returned. If the iterable is empty, this returns undefined.

Complexity

Linear.

Example
```
import { minmax } from '@lumino/algorithm';

function numberCmp(a: number, b: number): number {
  return a - b;
}

minmax([7, 4, 0, 3, 9, 4], numberCmp);  // [0, 9]
```
Type Parameters
- T
Parameters
- object: Iterable<T>
  
  The iterable object to search.
- fn: ((first: T, second: T) => number)
  
  The 3-way comparison function to apply to the values. It should return < 0 if the first value is less than the second. 0 if the values are equivalent, or > 0 if the first value is greater than the second.
  - - (first: T, second: T): number
    - Parameters
      
      first: T
      
      second: T
      
      Returns number
Returns [T, T] | undefined
- Defined in packages/algorithm/src/find.ts:219

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