🔒 Why are the results and what are their behind logic

[lunar token]

def insert_head1(lst, element):
    lst = [element] + lst

def insert_head2(lst, element):
    lst = [element] + lst
    return lst


def insert_head3(lst, element):
    lst.insert(0,element) #Hint: use help() to understand the usage of method insert of a list object
    
    
months=['Mar', 'Apr']

insert_head1(months, 'Feb')
print(months)

months = insert_head2(months, 'Feb')
print(months)

insert_head3(months, 'Jan')
print(months)

[eternal vigil]

@lunar token

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[lunar token]

may i ask for the first insert_head1, why we must need to add return to show three months

[woeful epoch]

because you create a new list object when you do lst = [element] + lst

that object only exists in that function until you return it

[lunar token]

got it thank you

[eternal vigil]

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