Generic First Item
Easy · Generics
Write a generic function first<T>(items: T[]): T | undefined that returns the first item of the array, or undefined if it is empty.
Next: Last Item or Fallback
Easy · Generics
Write a generic function first<T>(items: T[]): T | undefined that returns the first item of the array, or undefined if it is empty.
Next: Last Item or Fallback