Defanging an IP Address - LeetCode

Given a valid (IPv4) IP address, return a defanged version of that IP address.

A defanged IP address replaces every period "." with "[.]".

1. type conversion input string to list

2. if compiler finds '.', replace with '[.]'

3. type conversion back to string

"""
1108. Defanging an IP Address

Given a valid (IPv4) IP address, return a defanged version of that IP address.

A defanged IP address replaces every period "." with "[.]".

Input: address = "1.1.1.1"
Output: "1[.]1[.]1[.]1"
"""

address = list("1.1.1.1")
print(address)

i = 0
while i < len(address):
    if address[i] == ".":
        address.insert(i, "[.]")
        address.remove(".")

    i += 1

print(''.join(address))

in leetcode

How to convert list to string

• without comma:

''.join(list)

• with spaces:

' '.join(list)