#1108 - Defanging an IP Address

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Problem Description

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

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

Solution

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

// or...

/**
 * @param {string} address
 * @return {string}
 */
var defangIPaddr = function(address) {
  return address.split('.').join('[.]');
};