PYTHON

Difference between append() and extend() method in Python

Difference between List append() and List extend() method
a =[1,2]
b= [3,4]

# append() method 
a.append(b)
print("Using append() method", a)

x =[1,2]
y= [3,4]


# extend() method 
x.extend(y)
print("Using extend() method", x)

python extend vs append

my_list = [23, 11, 42, 24523]

# append will add it as if you're adding a new list to it
my_list.append([34523, 76979])
print(my_list)

# extend will go over each item in the new source list and add each
# element as part of the target list (my_list)
my_list.extend([12, 99])
print(my_list)