How keep in place elements in array which are in second array

I have two arrays and I need to create new array which include elements which are in first array have such as here:

array1 = [1,2,3]
array2 = [1,3,6,3,8,2,2,3,3]
my_func(arr1, arr2):
  ...
  return new_array

print(myfunc(array1, array2)

Output: [1,3,3,2,2,3,3]

>Solution :

You could answer this by looping around the array2 and checking if the each element is present in array1 if yes then append to new_array else go on with loop.

1. Make a new array (In your case new_array);
2. Loop around the array2.
3. Inside the loop check if the element is present inside array.
4. If present append to new_array.
5. After loop end return the new_array.

If you are not able To understand above logic please refer to code below and try to understand from it.

array1 = [1,2,3]
array2 = [1,3,6,3,8,2,2,3,3]
def my_func(arr1, arr2):
    new_array = []
    for i in range(len):
        if(i in arr1):
            new_array.append(i)
    return new_array

print(my_func(array1, array2))