 
      
      append()Add new element to the end of an array
append(arr, value)
arr (array)  — An arrayvalue (any)  — Value to be added to arr
boolean — Always returns true
a = [1, 2, 3]
append(a, 4)
append(a, 5)
 
' a is:
' array(
'    [0] = 1,
'    [1] = 2,
'    [2] = 3,
'    [3] = 4,
'    [4] = 5
' )