Function intersection

intersection<T>(arr1: T[], arr2: T[]): T[] | null
Returns the intersection of two arrays or null if there is no intersection.
Type Parameters
- T
Parameters
- arr1: T[]
  The first array.
- arr2: T[]
  The second array.
Returns T[] | null
An array that contains the intersection of arr1 and arr2, or null if there is no intersection.
- Defined in array.ts:121