Question

Differentiate between append ()and extend()method of list​

Answer 1

When append() method adds its argument as a single element to the end of a list, the length of the list itself will increase by one. Whereas extend() method iterates over its argument adding each element to the list, extending the list.

Answer 2

Answer:

append: Appends object at the end.

x = [1, 2, 3]

x.append([4, 5])

print (x)

>>> [1, 2, 3, [4, 5]]

extend: Extends list by appending elements from the iterable.

x = [1, 2, 3]

x.extend([4, 5])

print (x)

>>> [1, 2, 3, 4, 5]