Brian Yang
algorithm designer
Mar 15, 2020 1 min read

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 "[.]".

Example 1:

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

Example 2:

Input: address = "255.100.50.0"
Output: "255[.]100[.]50[.]0"

Constraints:

Solution

var defangIPaddr = function(address) {
  return address.replace(/\./g,'[.]')
};