input: Write a function to populate an array with random numbers from 1 to 100. The function should take an integer `array_length` as input and return a list of integers.
  assert populateArray(5) != populateArray(5)
  assert len(populateArray(10)) == 10
  assert all(1 <= num <= 100 for num in populateArray(20))
  assert populateArray(0) == []
output: import random
  
  def populateArray(array_length):
      return [random.randint(1, 100) for _ in range(array_length)]