Mahmoud EL-kariouny
Posted on January 4, 2024
Credit Card Mask 💳
- Usually when you buy something, you're asked whether your credit card number,
- phone number or answer to your most secret question is still correct.
- However, since someone could look over your shoulder,
you don't want that shown on your screen. Instead, we mask it.
Your task is to write a function maskify,
which changes all but the last four characters into '#'.
Examples:
"4556364607935616" --> "############5616"
"64607935616" --> "#######5616"
"1" --> "1"
"" --> ""
"What was the name of your first pet?"
"Skippy" --> "##ippy"
"Nananananananananananananananana Batman!" --> "####################################man!"
Task URL: https://www.codewars.com/kata/5412509bd436bd33920011bc/python
My Solution:
def maskify(cc):
"""
Masks the credit card number by replacing
all but the last four characters with '#'
Args:
cc (str): The credit card number as a string
Returns:
str: The masked credit card number
"""
credit_card = str(cc)
if len(credit_card) == 1 or len(credit_card) == 4:
return credit_card
if credit_card == "":
return ""
start = credit_card[0:-4]
end = credit_card[-4:]
hash = len(start) * '#'
hash_credit_card = "".join([hash, end])
return hash_credit_card
Code Snapshot:
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Mahmoud EL-kariouny
Posted on January 4, 2024
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