sample 
Returns a random element from an array.
This function takes an array and returns a single element selected randomly from the array.
Signature 
typescript
function sample<T>(arr: T[]): T;Parameters 
- arr(- T[]): The array to sample from.
Returns 
(T): A random element from the array.
Examples 
typescript
const array = [1, 2, 3, 4, 5];
const randomElement = sample(array);
// randomElement will be one of the elements from the array, selected randomly.
