Concatenate arrays with stack numpy

import numpy as np

t = np.arange(3)

for i in range(5):
  a = np.arange(3)
  np.stack((t, a))

print(t)

output = [0 1 2]

Please some help to contatenate arrays in a loop for, ty!

>Solution :

import numpy as np

t = np.arange(3)

for i in range(5):
  a = np.arange(3)
  t = np.vstack((t, a))

print(t)

Output:

[[0 1 2]
 [0 1 2]
 [0 1 2]
 [0 1 2]
 [0 1 2]
 [0 1 2]]